mirror of
https://github.com/golang/go.git
synced 2024-09-22 02:48:50 +00:00
gofmt -r 'α[β:len(α)] -> α[β:]' -w test/bench
except chameneosredux which i know is being edited require gofmt for test/bench R=r https://golang.org/cl/157110
This commit is contained in:
Russ Cox
parent
7ada6018a7
commit
19dae0799b
@ -607,7 +607,7 @@ def RelativePath(path, cwd):
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# Check that gofmt run on the list of files does not change them
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def CheckGofmt(ui, repo, files, just_warn=False):
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files = [f for f in files if f.startswith('src/') and f.endswith('.go')]
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files = [f for f in files if (f.startswith('src/') or f.startswith('test/bench/')) and f.endswith('.go')]
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if not files:
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return
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cwd = os.getcwd()
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@ -1082,6 +1082,7 @@ def sync(ui, repo, **opts):
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err = commands.postincoming(ui, repo, modheads, True, "tip")
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if err:
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return err
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commands.update(ui, repo)
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sync_changes(ui, repo)
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def sync_note(msg):
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@ -44,12 +44,12 @@ import (
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var n = flag.Int("n", 15, "depth")
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type Node struct {
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item int;
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left, right *Node;
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item int;
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left, right *Node;
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}
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type Arena struct {
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head *Node
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head *Node;
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}
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var arena Arena
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@ -67,9 +67,9 @@ func (n *Node) free() {
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func (a *Arena) New(item int, left, right *Node) *Node {
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if a.head == nil {
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nodes := make([]Node, 3 << uint(*n));
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nodes := make([]Node, 3<<uint(*n));
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for i := 0; i < len(nodes)-1; i++ {
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nodes[i].left = &nodes[i+1];
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nodes[i].left = &nodes[i+1]
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}
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a.head = &nodes[0];
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}
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@ -81,11 +81,11 @@ func (a *Arena) New(item int, left, right *Node) *Node {
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return n;
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}
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func bottomUpTree(item, depth int) *Node {
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func bottomUpTree(item, depth int) *Node {
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if depth <= 0 {
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return arena.New(item, nil, nil)
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}
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return arena.New(item, bottomUpTree(2*item-1, depth-1), bottomUpTree(2*item, depth-1))
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return arena.New(item, bottomUpTree(2*item-1, depth-1), bottomUpTree(2*item, depth-1));
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}
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func (n *Node) itemCheck() int {
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@ -95,13 +95,13 @@ func (n *Node) itemCheck() int {
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return n.item + n.left.itemCheck() - n.right.itemCheck();
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}
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const minDepth = 4;
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const minDepth = 4
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func main() {
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flag.Parse();
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maxDepth := *n;
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if minDepth + 2 > *n {
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if minDepth+2 > *n {
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maxDepth = minDepth + 2
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}
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stretchDepth := maxDepth + 1;
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@ -111,15 +111,15 @@ func main() {
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longLivedTree := bottomUpTree(0, maxDepth);
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for depth := minDepth; depth <= maxDepth; depth+=2 {
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iterations := 1 << uint(maxDepth - depth + minDepth);
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for depth := minDepth; depth <= maxDepth; depth += 2 {
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iterations := 1 << uint(maxDepth-depth+minDepth);
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check = 0;
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for i := 1; i <= iterations; i++ {
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t := bottomUpTree(i,depth);
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t := bottomUpTree(i, depth);
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check += t.itemCheck();
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t.free();
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t = bottomUpTree(-i,depth);
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t = bottomUpTree(-i, depth);
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check += t.itemCheck();
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t.free();
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}
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@ -44,15 +44,15 @@ import (
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var n = flag.Int("n", 15, "depth")
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type Node struct {
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item int;
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left, right *Node;
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item int;
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left, right *Node;
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}
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func bottomUpTree(item, depth int) *Node {
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func bottomUpTree(item, depth int) *Node {
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if depth <= 0 {
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return &Node{item: item}
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}
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return &Node{ item, bottomUpTree(2*item-1, depth-1), bottomUpTree(2*item, depth-1) }
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return &Node{item, bottomUpTree(2*item-1, depth-1), bottomUpTree(2*item, depth-1)};
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}
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func (n *Node) itemCheck() int {
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@ -62,13 +62,13 @@ func (n *Node) itemCheck() int {
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return n.item + n.left.itemCheck() - n.right.itemCheck();
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}
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const minDepth = 4;
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const minDepth = 4
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func main() {
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flag.Parse();
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maxDepth := *n;
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if minDepth + 2 > *n {
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if minDepth+2 > *n {
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maxDepth = minDepth + 2
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}
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stretchDepth := maxDepth + 1;
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@ -78,13 +78,13 @@ func main() {
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longLivedTree := bottomUpTree(0, maxDepth);
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for depth := minDepth; depth <= maxDepth; depth+=2 {
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iterations := 1 << uint(maxDepth - depth + minDepth);
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for depth := minDepth; depth <= maxDepth; depth += 2 {
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iterations := 1 << uint(maxDepth-depth+minDepth);
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check = 0;
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for i := 1; i <= iterations; i++ {
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check += bottomUpTree(i,depth).itemCheck();
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check += bottomUpTree(-i,depth).itemCheck();
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check += bottomUpTree(i, depth).itemCheck();
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check += bottomUpTree(-i, depth).itemCheck();
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}
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fmt.Printf("%d\t trees of depth %d\t check: %d\n", iterations*2, depth, check);
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}
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@ -46,7 +46,7 @@ var n = flag.Int("n", 7, "count")
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func fannkuch(n int) int {
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if n < 1 {
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return 0;
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return 0
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}
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n1 := n - 1;
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@ -55,43 +55,45 @@ func fannkuch(n int) int {
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count := make([]int, n);
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for i := 0; i < n; i++ {
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perm1[i] = i; // initial (trivial) permutation
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perm1[i] = i // initial (trivial) permutation
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}
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r := n;
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didpr := 0;
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flipsMax := 0;
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for {
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if didpr < 30 {
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if didpr < 30 {
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for i := 0; i < n; i++ {
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fmt.Printf("%d", 1+perm1[i]);
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fmt.Printf("%d", 1+perm1[i])
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}
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fmt.Printf("\n");
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didpr++;
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}
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for ; r != 1; r-- {
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count[r-1] = r;
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count[r-1] = r
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}
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if perm1[0] != 0 && perm1[n1] != n1 {
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flips := 0;
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for i := 1; i < n; i++ { // perm = perm1
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perm[i] = perm1[i];
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perm[i] = perm1[i]
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}
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k := perm1[0]; // cache perm[0] in k
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for { // k!=0 ==> k>0
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k := perm1[0]; // cache perm[0] in k
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for { // k!=0 ==> k>0
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for i, j := 1, k-1; i < j; i, j = i+1, j-1 {
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perm[i], perm[j] = perm[j], perm[i];
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perm[i], perm[j] = perm[j], perm[i]
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}
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flips++;
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// Now exchange k (caching perm[0]) and perm[k]... with care!
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j := perm[k]; perm[k] = k; k = j;
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j := perm[k];
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perm[k] = k;
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k = j;
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if k == 0 {
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break
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}
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}
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if flipsMax < flips {
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flipsMax = flips;
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flipsMax = flips
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}
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}
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@ -99,19 +101,19 @@ func fannkuch(n int) int {
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// rotate down perm[0..r] by one
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perm0 := perm1[0];
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for i := 0; i < r; i++ {
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perm1[i] = perm1[i+1];
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perm1[i] = perm1[i+1]
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}
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perm1[r] = perm0;
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count[r]--;
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if count[r] > 0 {
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break;
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break
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}
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}
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if r == n {
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return flipsMax;
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return flipsMax
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}
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}
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return 0
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return 0;
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}
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func main() {
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@ -91,7 +91,7 @@ func RepeatFasta(s []byte, count int) {
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pos := 0;
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s2 := make([]byte, len(s)+WIDTH);
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copy(s2, s);
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copy(s2[len(s):len(s2)], s);
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copy(s2[len(s):], s);
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for count > 0 {
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line := min(WIDTH, count);
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out.Write(s2[pos : pos+line]);
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@ -47,18 +47,18 @@ import (
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var in *bufio.Reader
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func count(data string, n int) map[string] int {
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counts := make(map[string] int);
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func count(data string, n int) map[string]int {
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counts := make(map[string]int);
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top := len(data) - n;
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for i := 0; i <= top; i++ {
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s := data[i:i+n];
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s := data[i : i+n];
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if k, ok := counts[s]; ok {
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counts[s] = k+1
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counts[s] = k + 1
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} else {
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counts[s] = 1
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}
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}
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return counts
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return counts;
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}
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func countOne(data string, s string) int {
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@ -66,7 +66,7 @@ func countOne(data string, s string) int {
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if i, ok := counts[s]; ok {
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return i
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}
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return 0
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return 0;
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}
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@ -77,16 +77,16 @@ type kNuc struct {
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type kNucArray []kNuc
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func (kn kNucArray) Len() int { return len(kn) }
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func (kn kNucArray) Swap(i, j int) { kn[i], kn[j] = kn[j], kn[i] }
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func (kn kNucArray) Len() int { return len(kn) }
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func (kn kNucArray) Swap(i, j int) { kn[i], kn[j] = kn[j], kn[i] }
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func (kn kNucArray) Less(i, j int) bool {
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if kn[i].count == kn[j].count {
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return kn[i].name > kn[j].name // sort down
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}
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return kn[i].count > kn[j].count
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return kn[i].count > kn[j].count;
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}
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func sortedArray(m map[string] int) kNucArray {
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func sortedArray(m map[string]int) kNucArray {
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kn := make(kNucArray, len(m));
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i := 0;
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for k, v := range m {
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@ -98,14 +98,14 @@ func sortedArray(m map[string] int) kNucArray {
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return kn;
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}
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func print(m map[string] int) {
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func print(m map[string]int) {
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a := sortedArray(m);
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sum := 0;
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for _, kn := range a {
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sum += kn.count;
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sum += kn.count
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}
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for _, kn := range a {
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fmt.Printf("%s %.3f\n", kn.name, 100*float64(kn.count)/float64(sum));
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fmt.Printf("%s %.3f\n", kn.name, 100*float64(kn.count)/float64(sum))
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}
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}
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@ -119,7 +119,7 @@ func main() {
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os.Exit(2);
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}
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if line[0] == '>' && bytes.Equal(line[0:len(three)], three) {
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break;
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break
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}
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}
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data, err := io.ReadAll(in);
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@ -132,7 +132,7 @@ func main() {
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for i := 0; i < len(data); i++ {
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if data[i] != '\n' {
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data[j] = data[i] &^ ' '; // upper case
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j++
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j++;
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}
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}
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str := string(data[0:j]);
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@ -145,6 +145,6 @@ func main() {
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interests := []string{"GGT", "GGTA", "GGTATT", "GGTATTTTAATT", "GGTATTTTAATTTATAGT"};
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for _, s := range interests {
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fmt.Printf("%d %s\n", countOne(str, s), s);
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fmt.Printf("%d %s\n", countOne(str, s), s)
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}
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}
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@ -32,7 +32,7 @@ POSSIBILITY OF SUCH DAMAGE.
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*
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* contributed by The Go Authors.
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* Based on mandelbrot.c contributed by Greg Buchholz
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*/
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*/
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package main
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@ -61,7 +61,7 @@ func main() {
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fmt.Fprintf(out, "P4\n%d %d\n", w, h);
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for y := 0; y < h; y++ {
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for x := 0; x<w; x++ {
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for x := 0; x < w; x++ {
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Zr, Zi, Tr, Ti := Zero, Zero, Zero, Zero;
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Cr := (2*float64(x)/float64(w) - 1.5);
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Ci := (2*float64(y)/float64(h) - 1.0);
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@ -75,7 +75,7 @@ func main() {
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byte_acc <<= 1;
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if Tr+Ti <= Limit*Limit {
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byte_acc |= 0x01;
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byte_acc |= 0x01
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}
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bit_num++;
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@ -85,7 +85,7 @@ func main() {
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byte_acc = 0;
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bit_num = 0;
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} else if x == w-1 {
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byte_acc <<= uint(8-w%8);
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byte_acc <<= uint(8 - w%8);
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out.WriteByte(byte_acc);
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byte_acc = 0;
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bit_num = 0;
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@ -48,7 +48,7 @@ func boolInt(b bool) int8 {
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if b {
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return 1
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}
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return 0
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return 0;
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}
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/* The board is a 50 cell hexagonal pattern. For . . . . .
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@ -63,7 +63,7 @@ func boolInt(b bool) int8 {
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* . . . . .
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*/
|
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var board uint64 = 0xFFFC000000000000
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var board uint64 = 0xFFFC000000000000
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/* The puzzle pieces must be specified by the path followed
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* from one end to the other along 12 hexagonal directions.
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@ -87,7 +87,7 @@ var board uint64 = 0xFFFC000000000000
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*/
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const (
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E = iota;
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E = iota;
|
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ESE;
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SE;
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S;
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@ -102,17 +102,17 @@ const (
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PIVOT;
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)
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var piece_def = [10][4]int8 {
|
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[4]int8{ E, E, E, SE},
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[4]int8{ SE, E, NE, E},
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[4]int8{ E, E, SE, SW},
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[4]int8{ E, E, SW, SE},
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[4]int8{ SE, E, NE, S},
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[4]int8{ E, E, SW, E},
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[4]int8{ E, SE, SE, NE},
|
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[4]int8{ E, SE, SE, W},
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[4]int8{ E, SE, E, E},
|
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[4]int8{ E, E, E, SW}
|
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var piece_def = [10][4]int8{
|
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[4]int8{E, E, E, SE},
|
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[4]int8{SE, E, NE, E},
|
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[4]int8{E, E, SE, SW},
|
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[4]int8{E, E, SW, SE},
|
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[4]int8{SE, E, NE, S},
|
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[4]int8{E, E, SW, E},
|
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[4]int8{E, SE, SE, NE},
|
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[4]int8{E, SE, SE, W},
|
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[4]int8{E, SE, E, E},
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[4]int8{E, E, E, SW},
|
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}
|
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|
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|
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@ -127,20 +127,16 @@ var piece_def = [10][4]int8 {
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* location to reduce the burden on the solve function.
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*/
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var (
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pieces[10][50][12] uint64;
|
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piece_counts[10][50] int;
|
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next_cell[10][50][12] int8;
|
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pieces [10][50][12]uint64;
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piece_counts [10][50]int;
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next_cell [10][50][12]int8;
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)
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|
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/* Returns the direction rotated 60 degrees clockwise */
|
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func rotate(dir int8) int8 {
|
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return (dir + 2) % PIVOT;
|
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}
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func rotate(dir int8) int8 { return (dir + 2) % PIVOT }
|
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|
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/* Returns the direction flipped on the horizontal axis */
|
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func flip(dir int8) int8 {
|
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return (PIVOT - dir) % PIVOT;
|
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}
|
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func flip(dir int8) int8 { return (PIVOT - dir) % PIVOT }
|
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|
||||
|
||||
/* Returns the new cell index from the specified cell in the
|
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@ -151,60 +147,60 @@ func flip(dir int8) int8 {
|
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func shift(cell, dir int8) int8 {
|
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switch dir {
|
||||
case E:
|
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return cell + 1;
|
||||
return cell + 1
|
||||
case ESE:
|
||||
if ((cell / 5) % 2) != 0 {
|
||||
return cell + 7;
|
||||
return cell + 7
|
||||
} else {
|
||||
return cell + 6;
|
||||
return cell + 6
|
||||
}
|
||||
case SE:
|
||||
if ((cell / 5) % 2) != 0 {
|
||||
return cell + 6;
|
||||
return cell + 6
|
||||
} else {
|
||||
return cell + 5;
|
||||
return cell + 5
|
||||
}
|
||||
case S:
|
||||
return cell + 10;
|
||||
return cell + 10
|
||||
case SW:
|
||||
if ((cell / 5) % 2) != 0 {
|
||||
return cell + 5;
|
||||
return cell + 5
|
||||
} else {
|
||||
return cell + 4;
|
||||
return cell + 4
|
||||
}
|
||||
case WSW:
|
||||
if ((cell / 5) % 2) != 0 {
|
||||
return cell + 4;
|
||||
return cell + 4
|
||||
} else {
|
||||
return cell + 3;
|
||||
return cell + 3
|
||||
}
|
||||
case W:
|
||||
return cell - 1;
|
||||
return cell - 1
|
||||
case WNW:
|
||||
if ((cell / 5) % 2) != 0{
|
||||
return cell - 6;
|
||||
if ((cell / 5) % 2) != 0 {
|
||||
return cell - 6
|
||||
} else {
|
||||
return cell - 7;
|
||||
return cell - 7
|
||||
}
|
||||
case NW:
|
||||
if ((cell / 5) % 2) != 0{
|
||||
return cell - 5;
|
||||
if ((cell / 5) % 2) != 0 {
|
||||
return cell - 5
|
||||
} else {
|
||||
return cell - 6;
|
||||
return cell - 6
|
||||
}
|
||||
case N:
|
||||
return cell - 10;
|
||||
return cell - 10
|
||||
case NE:
|
||||
if ((cell / 5) % 2) != 0{
|
||||
return cell - 4;
|
||||
if ((cell / 5) % 2) != 0 {
|
||||
return cell - 4
|
||||
} else {
|
||||
return cell - 5;
|
||||
return cell - 5
|
||||
}
|
||||
case ENE:
|
||||
if ((cell / 5) % 2) != 0{
|
||||
return cell - 3;
|
||||
if ((cell / 5) % 2) != 0 {
|
||||
return cell - 3
|
||||
} else {
|
||||
return cell - 4;
|
||||
return cell - 4
|
||||
}
|
||||
}
|
||||
return cell;
|
||||
@ -215,32 +211,32 @@ func shift(cell, dir int8) int8 {
|
||||
* location or not.
|
||||
*/
|
||||
func out_of_bounds(cell, dir int8) bool {
|
||||
switch(dir) {
|
||||
switch dir {
|
||||
case E:
|
||||
return cell % 5 == 4;
|
||||
return cell%5 == 4
|
||||
case ESE:
|
||||
i := cell % 10;
|
||||
return i == 4 || i == 8 || i == 9 || cell >= 45;
|
||||
case SE:
|
||||
return cell % 10 == 9 || cell >= 45;
|
||||
return cell%10 == 9 || cell >= 45
|
||||
case S:
|
||||
return cell >= 40;
|
||||
return cell >= 40
|
||||
case SW:
|
||||
return cell % 10 == 0 || cell >= 45;
|
||||
return cell%10 == 0 || cell >= 45
|
||||
case WSW:
|
||||
i := cell % 10;
|
||||
return i == 0 || i == 1 || i == 5 || cell >= 45;
|
||||
case W:
|
||||
return cell % 5 == 0;
|
||||
return cell%5 == 0
|
||||
case WNW:
|
||||
i := cell % 10;
|
||||
return i == 0 || i == 1 || i == 5 || cell < 5;
|
||||
case NW:
|
||||
return cell % 10 == 0 || cell < 5;
|
||||
return cell%10 == 0 || cell < 5
|
||||
case N:
|
||||
return cell < 10;
|
||||
return cell < 10
|
||||
case NE:
|
||||
return cell % 10 == 9 || cell < 5;
|
||||
return cell%10 == 9 || cell < 5
|
||||
case ENE:
|
||||
i := cell % 10;
|
||||
return i == 4 || i == 8 || i == 9 || cell < 5;
|
||||
@ -251,14 +247,14 @@ func out_of_bounds(cell, dir int8) bool {
|
||||
/* Rotate a piece 60 degrees clockwise */
|
||||
func rotate_piece(piece int) {
|
||||
for i := 0; i < 4; i++ {
|
||||
piece_def[piece][i] = rotate(piece_def[piece][i]);
|
||||
piece_def[piece][i] = rotate(piece_def[piece][i])
|
||||
}
|
||||
}
|
||||
|
||||
/* Flip a piece along the horizontal axis */
|
||||
func flip_piece(piece int) {
|
||||
for i := 0; i < 4; i++ {
|
||||
piece_def[piece][i] = flip(piece_def[piece][i]);
|
||||
piece_def[piece][i] = flip(piece_def[piece][i])
|
||||
}
|
||||
}
|
||||
|
||||
@ -266,16 +262,16 @@ func flip_piece(piece int) {
|
||||
func calc_cell_indices(cell []int8, piece int, index int8) {
|
||||
cell[0] = index;
|
||||
for i := 1; i < 5; i++ {
|
||||
cell[i] = shift(cell[i-1], piece_def[piece][i-1]);
|
||||
cell[i] = shift(cell[i-1], piece_def[piece][i-1])
|
||||
}
|
||||
}
|
||||
|
||||
/* Convenience function to quickly calculate if a piece fits on the board */
|
||||
func cells_fit_on_board(cell []int8, piece int) bool {
|
||||
return !out_of_bounds(cell[0], piece_def[piece][0]) &&
|
||||
!out_of_bounds(cell[1], piece_def[piece][1]) &&
|
||||
!out_of_bounds(cell[2], piece_def[piece][2]) &&
|
||||
!out_of_bounds(cell[3], piece_def[piece][3]);
|
||||
!out_of_bounds(cell[1], piece_def[piece][1]) &&
|
||||
!out_of_bounds(cell[2], piece_def[piece][2]) &&
|
||||
!out_of_bounds(cell[3], piece_def[piece][3])
|
||||
}
|
||||
|
||||
/* Returns the lowest index of the cells of a piece.
|
||||
@ -299,9 +295,9 @@ func minimum_of_cells(cell []int8) int8 {
|
||||
func first_empty_cell(cell []int8, minimum int8) int8 {
|
||||
first_empty := minimum;
|
||||
for first_empty == cell[0] || first_empty == cell[1] ||
|
||||
first_empty == cell[2] || first_empty == cell[3] ||
|
||||
first_empty == cell[4] {
|
||||
first_empty++;
|
||||
first_empty == cell[2] || first_empty == cell[3] ||
|
||||
first_empty == cell[4] {
|
||||
first_empty++
|
||||
}
|
||||
return first_empty;
|
||||
}
|
||||
@ -312,7 +308,7 @@ func first_empty_cell(cell []int8, minimum int8) int8 {
|
||||
func bitmask_from_cells(cell []int8) uint64 {
|
||||
var piece_mask uint64;
|
||||
for i := 0; i < 5; i++ {
|
||||
piece_mask |= 1 << uint(cell[i]);
|
||||
piece_mask |= 1 << uint(cell[i])
|
||||
}
|
||||
return piece_mask;
|
||||
}
|
||||
@ -332,26 +328,26 @@ func record_piece(piece int, minimum int8, first_empty int8, piece_mask uint64)
|
||||
*/
|
||||
func fill_contiguous_space(board []int8, index int8) {
|
||||
if board[index] == 1 {
|
||||
return;
|
||||
return
|
||||
}
|
||||
board[index] = 1;
|
||||
if !out_of_bounds(index, E) {
|
||||
fill_contiguous_space(board, shift(index, E));
|
||||
fill_contiguous_space(board, shift(index, E))
|
||||
}
|
||||
if !out_of_bounds(index, SE) {
|
||||
fill_contiguous_space(board, shift(index, SE));
|
||||
fill_contiguous_space(board, shift(index, SE))
|
||||
}
|
||||
if !out_of_bounds(index, SW) {
|
||||
fill_contiguous_space(board, shift(index, SW));
|
||||
fill_contiguous_space(board, shift(index, SW))
|
||||
}
|
||||
if !out_of_bounds(index, W) {
|
||||
fill_contiguous_space(board, shift(index, W));
|
||||
fill_contiguous_space(board, shift(index, W))
|
||||
}
|
||||
if !out_of_bounds(index, NW) {
|
||||
fill_contiguous_space(board, shift(index, NW));
|
||||
fill_contiguous_space(board, shift(index, NW))
|
||||
}
|
||||
if !out_of_bounds(index, NE) {
|
||||
fill_contiguous_space(board, shift(index, NE));
|
||||
fill_contiguous_space(board, shift(index, NE))
|
||||
}
|
||||
}
|
||||
|
||||
@ -366,22 +362,22 @@ func has_island(cell []int8, piece int) bool {
|
||||
temp_board := make([]int8, 50);
|
||||
var i int;
|
||||
for i = 0; i < 5; i++ {
|
||||
temp_board[cell[i]] = 1;
|
||||
temp_board[cell[i]] = 1
|
||||
}
|
||||
i = 49;
|
||||
for temp_board[i] == 1 {
|
||||
i--;
|
||||
i--
|
||||
}
|
||||
fill_contiguous_space(temp_board, int8(i));
|
||||
c := 0;
|
||||
for i = 0; i < 50; i++ {
|
||||
if temp_board[i] == 0 {
|
||||
c++;
|
||||
c++
|
||||
}
|
||||
}
|
||||
if c == 0 || (c == 5 && piece == 8) || (c == 40 && piece == 8) ||
|
||||
(c % 5 == 0 && piece == 0) {
|
||||
return false;
|
||||
(c%5 == 0 && piece == 0) {
|
||||
return false
|
||||
}
|
||||
return true;
|
||||
}
|
||||
@ -422,23 +418,24 @@ func calc_pieces() {
|
||||
}
|
||||
|
||||
|
||||
|
||||
/* Calculate all 32 possible states for a 5-bit row and all rows that will
|
||||
* create islands that follow any of the 32 possible rows. These pre-
|
||||
* calculated 5-bit rows will be used to find islands in a partially solved
|
||||
* board in the solve function.
|
||||
*/
|
||||
const (
|
||||
ROW_MASK = 0x1F;
|
||||
TRIPLE_MASK = 0x7FFF;
|
||||
const (
|
||||
ROW_MASK = 0x1F;
|
||||
TRIPLE_MASK = 0x7FFF;
|
||||
)
|
||||
|
||||
var (
|
||||
all_rows = [32]int8{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
|
||||
17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31};
|
||||
bad_even_rows [32][32]int8;
|
||||
bad_odd_rows [32][32]int8;
|
||||
bad_even_triple [32768]int8;
|
||||
bad_odd_triple [32768]int8;
|
||||
all_rows = [32]int8{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
|
||||
17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
|
||||
};
|
||||
bad_even_rows [32][32]int8;
|
||||
bad_odd_rows [32][32]int8;
|
||||
bad_even_triple [32768]int8;
|
||||
bad_odd_triple [32768]int8;
|
||||
)
|
||||
|
||||
func rows_bad(row1, row2 int8, even bool) int8 {
|
||||
@ -446,34 +443,34 @@ func rows_bad(row1, row2 int8, even bool) int8 {
|
||||
var row2_shift int8;
|
||||
/* Test for blockages at same index and shifted index */
|
||||
if even {
|
||||
row2_shift = ((row2 << 1) & ROW_MASK) | 0x01;
|
||||
row2_shift = ((row2 << 1) & ROW_MASK) | 0x01
|
||||
} else {
|
||||
row2_shift = (row2 >> 1) | 0x10;
|
||||
row2_shift = (row2 >> 1) | 0x10
|
||||
}
|
||||
block := ((row1 ^ row2) & row2) & ((row1 ^ row2_shift) & row2_shift);
|
||||
/* Test for groups of 0's */
|
||||
in_zeroes := false;
|
||||
group_okay := false;
|
||||
for i := uint8(0); i < 5; i++ {
|
||||
if row1 & (1 << i) != 0 {
|
||||
if row1&(1<<i) != 0 {
|
||||
if in_zeroes {
|
||||
if !group_okay {
|
||||
return 1;
|
||||
return 1
|
||||
}
|
||||
in_zeroes = false;
|
||||
group_okay = false;
|
||||
}
|
||||
} else {
|
||||
if !in_zeroes {
|
||||
in_zeroes = true;
|
||||
in_zeroes = true
|
||||
}
|
||||
if (block & (1 << i)) == 0 {
|
||||
group_okay = true;
|
||||
group_okay = true
|
||||
}
|
||||
}
|
||||
}
|
||||
if in_zeroes {
|
||||
return boolInt(!group_okay);
|
||||
return boolInt(!group_okay)
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
@ -490,9 +487,9 @@ func triple_is_okay(row1, row2, row3 int, even bool) bool {
|
||||
* row3: 011?? 00110 ????? ?????
|
||||
*/
|
||||
return ((row1 == 0x03) && (row2 == 0x0B) && ((row3 & 0x1C) == 0x0C)) ||
|
||||
((row1 == 0x01) && (row2 == 0x05) && (row3 == 0x06)) ||
|
||||
((row1 == 0x19) && (row2 == 0x11)) ||
|
||||
((row1 == 0x15) && (row2 == 0x11));
|
||||
((row1 == 0x01) && (row2 == 0x05) && (row3 == 0x06)) ||
|
||||
((row1 == 0x19) && (row2 == 0x11)) ||
|
||||
((row1 == 0x15) && (row2 == 0x11))
|
||||
}
|
||||
/* There are two cases:
|
||||
* row1: 10011 10101
|
||||
@ -500,7 +497,7 @@ func triple_is_okay(row1, row2, row3 int, even bool) bool {
|
||||
* row3: ????? ?????
|
||||
*/
|
||||
return ((row1 == 0x13) && (row2 == 0x11)) ||
|
||||
((row1 == 0x15) && (row2 == 0x11));
|
||||
((row1 == 0x15) && (row2 == 0x11));
|
||||
}
|
||||
|
||||
func calc_rows() {
|
||||
@ -515,18 +512,18 @@ func calc_rows() {
|
||||
for row3 := 0; row3 < 32; row3++ {
|
||||
result1 := bad_even_rows[row1][row2];
|
||||
result2 := bad_odd_rows[row2][row3];
|
||||
if result1==0 && result2!=0 && triple_is_okay(row1, row2, row3, true) {
|
||||
bad_even_triple[row1+(row2*32)+(row3*1024)] = 0;
|
||||
if result1 == 0 && result2 != 0 && triple_is_okay(row1, row2, row3, true) {
|
||||
bad_even_triple[row1+(row2*32)+(row3*1024)] = 0
|
||||
} else {
|
||||
bad_even_triple[row1+(row2*32)+(row3*1024)] = boolInt(result1!=0 || result2!=0);
|
||||
bad_even_triple[row1+(row2*32)+(row3*1024)] = boolInt(result1 != 0 || result2 != 0)
|
||||
}
|
||||
|
||||
result1 = bad_odd_rows[row1][row2];
|
||||
result2 = bad_even_rows[row2][row3];
|
||||
if result1==0 && result2!=0 && triple_is_okay(row1, row2, row3, false) {
|
||||
bad_odd_triple[row1+(row2*32)+(row3*1024)] = 0;
|
||||
if result1 == 0 && result2 != 0 && triple_is_okay(row1, row2, row3, false) {
|
||||
bad_odd_triple[row1+(row2*32)+(row3*1024)] = 0
|
||||
} else {
|
||||
bad_odd_triple[row1+(row2*32)+(row3*1024)] = boolInt(result1!=0 || result2!=0);
|
||||
bad_odd_triple[row1+(row2*32)+(row3*1024)] = boolInt(result1 != 0 || result2 != 0)
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -534,17 +531,16 @@ func calc_rows() {
|
||||
}
|
||||
|
||||
|
||||
|
||||
/* Calculate islands while solving the board.
|
||||
*/
|
||||
*/
|
||||
func boardHasIslands(cell int8) int8 {
|
||||
/* Too low on board, don't bother checking */
|
||||
if cell >= 40 {
|
||||
return 0;
|
||||
return 0
|
||||
}
|
||||
current_triple := (board >> uint((cell / 5) * 5)) & TRIPLE_MASK;
|
||||
if (cell / 5) % 2 != 0 {
|
||||
return bad_odd_triple[current_triple];
|
||||
current_triple := (board >> uint((cell/5)*5)) & TRIPLE_MASK;
|
||||
if (cell/5)%2 != 0 {
|
||||
return bad_odd_triple[current_triple]
|
||||
}
|
||||
return bad_even_triple[current_triple];
|
||||
}
|
||||
@ -557,18 +553,18 @@ func boardHasIslands(cell int8) int8 {
|
||||
* array if a solution is found.
|
||||
*/
|
||||
var (
|
||||
avail uint16 = 0x03FF;
|
||||
sol_nums [10]int8;
|
||||
sol_masks [10]uint64;
|
||||
solutions [2100][50]int8;
|
||||
solution_count = 0;
|
||||
avail uint16 = 0x03FF;
|
||||
sol_nums [10]int8;
|
||||
sol_masks [10]uint64;
|
||||
solutions [2100][50]int8;
|
||||
solution_count = 0;
|
||||
)
|
||||
|
||||
func record_solution() {
|
||||
for sol_no := 0; sol_no < 10; sol_no++ {
|
||||
for sol_no := 0; sol_no < 10; sol_no++ {
|
||||
sol_mask := sol_masks[sol_no];
|
||||
for index := 0; index < 50; index++ {
|
||||
if sol_mask & 1 == 1 {
|
||||
if sol_mask&1 == 1 {
|
||||
solutions[solution_count][index] = sol_nums[sol_no];
|
||||
/* Board rotated 180 degrees is a solution too! */
|
||||
solutions[solution_count+1][49-index] = sol_nums[sol_no];
|
||||
@ -581,23 +577,23 @@ func record_solution() {
|
||||
|
||||
func solve(depth, cell int8) {
|
||||
if solution_count >= *max_solutions {
|
||||
return;
|
||||
return
|
||||
}
|
||||
|
||||
for board & (1 << uint(cell)) != 0 {
|
||||
cell++;
|
||||
for board&(1<<uint(cell)) != 0 {
|
||||
cell++
|
||||
}
|
||||
|
||||
for piece := int8(0); piece < 10; piece++ {
|
||||
for piece := int8(0); piece < 10; piece++ {
|
||||
var piece_no_mask uint16 = 1 << uint(piece);
|
||||
if avail & piece_no_mask == 0 {
|
||||
continue;
|
||||
if avail&piece_no_mask == 0 {
|
||||
continue
|
||||
}
|
||||
avail ^= piece_no_mask;
|
||||
max_rots := piece_counts[piece][cell];
|
||||
piece_mask := pieces[piece][cell];
|
||||
for rotation := 0; rotation < max_rots; rotation++ {
|
||||
if board & piece_mask[rotation] == 0 {
|
||||
if board&piece_mask[rotation] == 0 {
|
||||
sol_nums[depth] = piece;
|
||||
sol_masks[depth] = piece_mask[rotation];
|
||||
if depth == 9 {
|
||||
@ -608,7 +604,7 @@ func solve(depth, cell int8) {
|
||||
}
|
||||
board |= piece_mask[rotation];
|
||||
if boardHasIslands(next_cell[piece][cell][rotation]) == 0 {
|
||||
solve(depth + 1, next_cell[piece][cell][rotation]);
|
||||
solve(depth+1, next_cell[piece][cell][rotation])
|
||||
}
|
||||
board ^= piece_mask[rotation];
|
||||
}
|
||||
@ -621,8 +617,8 @@ func solve(depth, cell int8) {
|
||||
func pretty(b *[50]int8) {
|
||||
for i := 0; i < 50; i += 10 {
|
||||
fmt.Printf("%c %c %c %c %c \n %c %c %c %c %c \n", b[i]+'0', b[i+1]+'0',
|
||||
b[i+2]+'0', b[i+3]+'0', b[i+4]+'0', b[i+5]+'0', b[i+6]+'0',
|
||||
b[i+7]+'0', b[i+8]+'0', b[i+9]+'0');
|
||||
b[i+2]+'0', b[i+3]+'0', b[i+4]+'0', b[i+5]+'0', b[i+6]+'0',
|
||||
b[i+7]+'0', b[i+8]+'0', b[i+9]+'0')
|
||||
}
|
||||
fmt.Printf("\n");
|
||||
}
|
||||
@ -639,7 +635,7 @@ func smallest_largest() (smallest, largest *[50]int8) {
|
||||
continue
|
||||
}
|
||||
if c < s {
|
||||
smallest = candidate;
|
||||
smallest = candidate
|
||||
}
|
||||
break;
|
||||
}
|
||||
@ -649,7 +645,7 @@ func smallest_largest() (smallest, largest *[50]int8) {
|
||||
continue
|
||||
}
|
||||
if c > s {
|
||||
largest = candidate;
|
||||
largest = candidate
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
@ -45,15 +45,15 @@ import (
|
||||
var n = flag.Int("n", 1000, "number of iterations")
|
||||
|
||||
type Body struct {
|
||||
x, y, z, vx, vy, vz, mass float64
|
||||
x, y, z, vx, vy, vz, mass float64;
|
||||
}
|
||||
|
||||
const (
|
||||
solarMass = 4 * math.Pi * math.Pi;
|
||||
daysPerYear = 365.24;
|
||||
solarMass = 4 * math.Pi * math.Pi;
|
||||
daysPerYear = 365.24;
|
||||
)
|
||||
|
||||
func (b *Body) offsetMomentum(px, py, pz float64){
|
||||
func (b *Body) offsetMomentum(px, py, pz float64) {
|
||||
b.vx = -px / solarMass;
|
||||
b.vy = -py / solarMass;
|
||||
b.vz = -pz / solarMass;
|
||||
@ -82,7 +82,7 @@ func (sys System) energy() float64 {
|
||||
for i, body := range sys {
|
||||
e += 0.5 * body.mass *
|
||||
(body.vx*body.vx + body.vy*body.vy + body.vz*body.vz);
|
||||
for j := i+1; j < len(sys); j++ {
|
||||
for j := i + 1; j < len(sys); j++ {
|
||||
body2 := sys[j];
|
||||
dx := body.x - body2.x;
|
||||
dy := body.y - body2.y;
|
||||
@ -96,7 +96,7 @@ func (sys System) energy() float64 {
|
||||
|
||||
func (sys System) advance(dt float64) {
|
||||
for i, body := range sys {
|
||||
for j := i+1; j < len(sys); j++ {
|
||||
for j := i + 1; j < len(sys); j++ {
|
||||
body2 := sys[j];
|
||||
dx := body.x - body2.x;
|
||||
dy := body.y - body2.y;
|
||||
@ -124,7 +124,7 @@ func (sys System) advance(dt float64) {
|
||||
}
|
||||
|
||||
var (
|
||||
jupiter = Body {
|
||||
jupiter = Body{
|
||||
x: 4.84143144246472090e+00,
|
||||
y: -1.16032004402742839e+00,
|
||||
z: -1.03622044471123109e-01,
|
||||
@ -133,7 +133,7 @@ var (
|
||||
vz: -6.90460016972063023e-05 * daysPerYear,
|
||||
mass: 9.54791938424326609e-04 * solarMass,
|
||||
};
|
||||
saturn = Body {
|
||||
saturn = Body{
|
||||
x: 8.34336671824457987e+00,
|
||||
y: 4.12479856412430479e+00,
|
||||
z: -4.03523417114321381e-01,
|
||||
@ -142,7 +142,7 @@ var (
|
||||
vz: 2.30417297573763929e-05 * daysPerYear,
|
||||
mass: 2.85885980666130812e-04 * solarMass,
|
||||
};
|
||||
uranus = Body {
|
||||
uranus = Body{
|
||||
x: 1.28943695621391310e+01,
|
||||
y: -1.51111514016986312e+01,
|
||||
z: -2.23307578892655734e-01,
|
||||
@ -151,7 +151,7 @@ var (
|
||||
vz: -2.96589568540237556e-05 * daysPerYear,
|
||||
mass: 4.36624404335156298e-05 * solarMass,
|
||||
};
|
||||
neptune = Body {
|
||||
neptune = Body{
|
||||
x: 1.53796971148509165e+01,
|
||||
y: -2.59193146099879641e+01,
|
||||
z: 1.79258772950371181e-01,
|
||||
@ -160,9 +160,9 @@ var (
|
||||
vz: -9.51592254519715870e-05 * daysPerYear,
|
||||
mass: 5.15138902046611451e-05 * solarMass,
|
||||
};
|
||||
sun = Body {
|
||||
mass: solarMass
|
||||
}
|
||||
sun = Body{
|
||||
mass: solarMass,
|
||||
};
|
||||
)
|
||||
|
||||
func main() {
|
||||
|
||||
@ -43,20 +43,20 @@ import (
|
||||
"fmt";
|
||||
)
|
||||
|
||||
var n = flag.Int("n", 27, "number of digits");
|
||||
var silent = flag.Bool("s", false, "don't print result");
|
||||
var n = flag.Int("n", 27, "number of digits")
|
||||
var silent = flag.Bool("s", false, "don't print result")
|
||||
|
||||
var (
|
||||
tmp1 *bignum.Integer;
|
||||
tmp2 *bignum.Integer;
|
||||
numer = bignum.Int(1);
|
||||
accum = bignum.Int(0);
|
||||
denom = bignum.Int(1);
|
||||
tmp1 *bignum.Integer;
|
||||
tmp2 *bignum.Integer;
|
||||
numer = bignum.Int(1);
|
||||
accum = bignum.Int(0);
|
||||
denom = bignum.Int(1);
|
||||
)
|
||||
|
||||
func extract_digit() int64 {
|
||||
if numer.Cmp(accum) > 0 {
|
||||
return -1;
|
||||
return -1
|
||||
}
|
||||
|
||||
// Compute (numer * 3 + accum) / denom
|
||||
@ -70,7 +70,7 @@ func extract_digit() int64 {
|
||||
|
||||
// ... is normalized, then the two divisions have the same result.
|
||||
if tmp2.Cmp(denom) >= 0 {
|
||||
return -1;
|
||||
return -1
|
||||
}
|
||||
|
||||
return tmp1.Value();
|
||||
@ -94,7 +94,7 @@ func eliminate_digit(d int64) {
|
||||
|
||||
func printf(s string, arg ...) {
|
||||
if !*silent {
|
||||
fmt.Printf(s, arg);
|
||||
fmt.Printf(s, arg)
|
||||
}
|
||||
}
|
||||
|
||||
@ -110,20 +110,20 @@ func main() {
|
||||
d = extract_digit();
|
||||
}
|
||||
|
||||
printf("%c", d + '0');
|
||||
printf("%c", d+'0');
|
||||
|
||||
i++;
|
||||
m = i%10;
|
||||
m = i % 10;
|
||||
if m == 0 {
|
||||
printf("\t:%d\n", i);
|
||||
printf("\t:%d\n", i)
|
||||
}
|
||||
if i >= *n {
|
||||
break;
|
||||
break
|
||||
}
|
||||
eliminate_digit(d);
|
||||
}
|
||||
|
||||
if m > 0 {
|
||||
printf("%s\t:%d\n", " "[m : 10], *n);
|
||||
printf("%s\t:%d\n", " "[m:10], *n)
|
||||
}
|
||||
}
|
||||
|
||||
@ -43,7 +43,7 @@ import (
|
||||
"strings";
|
||||
)
|
||||
|
||||
var variants = []string {
|
||||
var variants = []string{
|
||||
"agggtaaa|tttaccct",
|
||||
"[cgt]gggtaaa|tttaccc[acg]",
|
||||
"a[act]ggtaaa|tttacc[agt]t",
|
||||
@ -56,21 +56,21 @@ var variants = []string {
|
||||
}
|
||||
|
||||
type Subst struct {
|
||||
pat, repl string
|
||||
pat, repl string;
|
||||
}
|
||||
|
||||
var substs = [] Subst {
|
||||
Subst {"B", "(c|g|t)"},
|
||||
Subst {"D", "(a|g|t)"},
|
||||
Subst {"H", "(a|c|t)"},
|
||||
Subst {"K", "(g|t)"},
|
||||
Subst {"M", "(a|c)"},
|
||||
Subst {"N", "(a|c|g|t)"},
|
||||
Subst {"R", "(a|g)"},
|
||||
Subst {"S", "(c|g)"},
|
||||
Subst {"V", "(a|c|g)"},
|
||||
Subst {"W", "(a|t)"},
|
||||
Subst {"Y", "(c|t)"},
|
||||
var substs = []Subst{
|
||||
Subst{"B", "(c|g|t)"},
|
||||
Subst{"D", "(a|g|t)"},
|
||||
Subst{"H", "(a|c|t)"},
|
||||
Subst{"K", "(g|t)"},
|
||||
Subst{"M", "(a|c)"},
|
||||
Subst{"N", "(a|c|g|t)"},
|
||||
Subst{"R", "(a|g)"},
|
||||
Subst{"S", "(c|g)"},
|
||||
Subst{"V", "(a|c|g)"},
|
||||
Subst{"W", "(a|t)"},
|
||||
Subst{"Y", "(c|t)"},
|
||||
}
|
||||
|
||||
func countMatches(pat string, bytes []byte) int {
|
||||
@ -79,10 +79,10 @@ func countMatches(pat string, bytes []byte) int {
|
||||
for {
|
||||
e := re.Execute(bytes);
|
||||
if len(e) == 0 {
|
||||
break;
|
||||
break
|
||||
}
|
||||
n++;
|
||||
bytes = bytes[e[1]:len(bytes)];
|
||||
bytes = bytes[e[1]:];
|
||||
}
|
||||
return n;
|
||||
}
|
||||
@ -98,10 +98,10 @@ func main() {
|
||||
bytes = regexp.MustCompile("(>[^\n]+)?\n").ReplaceAll(bytes, []byte{});
|
||||
clen := len(bytes);
|
||||
for _, s := range variants {
|
||||
fmt.Printf("%s %d\n", s, countMatches(s, bytes));
|
||||
fmt.Printf("%s %d\n", s, countMatches(s, bytes))
|
||||
}
|
||||
for _, sub := range substs {
|
||||
bytes = regexp.MustCompile(sub.pat).ReplaceAll(bytes, strings.Bytes(sub.repl));
|
||||
bytes = regexp.MustCompile(sub.pat).ReplaceAll(bytes, strings.Bytes(sub.repl))
|
||||
}
|
||||
fmt.Printf("\n%d\n%d\n%d\n", ilen, clen, len(bytes));
|
||||
}
|
||||
|
||||
@ -96,20 +96,20 @@ func main() {
|
||||
line, err := in.ReadSlice('\n');
|
||||
for err == nil {
|
||||
os.Stdout.Write(line);
|
||||
|
||||
|
||||
// Accumulate reversed complement in buf[w:]
|
||||
nchar := 0;
|
||||
w := len(buf);
|
||||
for {
|
||||
line, err = in.ReadSlice('\n');
|
||||
if err != nil || line[0] == '>' {
|
||||
break;
|
||||
break
|
||||
}
|
||||
line = line[0:len(line)-1];
|
||||
line = line[0 : len(line)-1];
|
||||
nchar += len(line);
|
||||
if len(line)+nchar/60+128 >= w {
|
||||
nbuf := make([]byte, len(buf)*5);
|
||||
copy(nbuf[len(nbuf)-len(buf):len(nbuf)], buf);
|
||||
copy(nbuf[len(nbuf)-len(buf):], buf);
|
||||
w += len(nbuf) - len(buf);
|
||||
buf = nbuf;
|
||||
}
|
||||
@ -118,14 +118,14 @@ func main() {
|
||||
buf[w] = complement[line[r]];
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// Copy down to beginning of buffer, inserting newlines.
|
||||
// The loop left room for the newlines and 128 bytes of padding.
|
||||
i := 0;
|
||||
for j := w; j < len(buf); j += 60 {
|
||||
n := copy(buf[i:i+60], buf[j:len(buf)]);
|
||||
n := copy(buf[i:i+60], buf[j:]);
|
||||
buf[i+n] = '\n';
|
||||
i += n+1;
|
||||
i += n + 1;
|
||||
}
|
||||
os.Stdout.Write(buf[0:i]);
|
||||
}
|
||||
|
||||
@ -46,9 +46,7 @@ import (
|
||||
var n = flag.Int("n", 2000, "count")
|
||||
var nCPU = flag.Int("ncpu", 4, "number of cpus")
|
||||
|
||||
func evalA(i, j int) float64 {
|
||||
return 1 / float64(((i + j)*(i + j + 1)/2 + i + 1));
|
||||
}
|
||||
func evalA(i, j int) float64 { return 1 / float64(((i+j)*(i+j+1)/2 + i + 1)) }
|
||||
|
||||
type Vec []float64
|
||||
|
||||
@ -56,7 +54,7 @@ func (v Vec) Times(i, n int, u Vec, c chan int) {
|
||||
for ; i < n; i++ {
|
||||
v[i] = 0;
|
||||
for j := 0; j < len(u); j++ {
|
||||
v[i] += evalA(i, j)*u[j];
|
||||
v[i] += evalA(i, j) * u[j]
|
||||
}
|
||||
}
|
||||
c <- 1;
|
||||
@ -66,7 +64,7 @@ func (v Vec) TimesTransp(i, n int, u Vec, c chan int) {
|
||||
for ; i < n; i++ {
|
||||
v[i] = 0;
|
||||
for j := 0; j < len(u); j++ {
|
||||
v[i] += evalA(j, i)*u[j];
|
||||
v[i] += evalA(j, i) * u[j]
|
||||
}
|
||||
}
|
||||
c <- 1;
|
||||
@ -82,11 +80,11 @@ func (v Vec) ATimesTransp(u Vec) {
|
||||
x := make(Vec, len(u));
|
||||
c := make(chan int, *nCPU);
|
||||
for i := 0; i < *nCPU; i++ {
|
||||
go x.Times(i*len(v) / *nCPU, (i+1)*len(v) / *nCPU, u, c);
|
||||
go x.Times(i*len(v) / *nCPU, (i+1)*len(v) / *nCPU, u, c)
|
||||
}
|
||||
wait(c);
|
||||
for i := 0; i < *nCPU; i++ {
|
||||
go v.TimesTransp(i*len(v) / *nCPU, (i+1)*len(v) / *nCPU, x, c);
|
||||
go v.TimesTransp(i*len(v) / *nCPU, (i+1)*len(v) / *nCPU, x, c)
|
||||
}
|
||||
wait(c);
|
||||
}
|
||||
@ -97,7 +95,7 @@ func main() {
|
||||
N := *n;
|
||||
u := make(Vec, N);
|
||||
for i := 0; i < N; i++ {
|
||||
u[i] = 1;
|
||||
u[i] = 1
|
||||
}
|
||||
v := make(Vec, N);
|
||||
for i := 0; i < 10; i++ {
|
||||
@ -106,8 +104,8 @@ func main() {
|
||||
}
|
||||
var vBv, vv float64;
|
||||
for i := 0; i < N; i++ {
|
||||
vBv += u[i]*v[i];
|
||||
vv += v[i]*v[i];
|
||||
vBv += u[i] * v[i];
|
||||
vv += v[i] * v[i];
|
||||
}
|
||||
fmt.Printf("%0.9f\n", math.Sqrt(vBv/vv));
|
||||
}
|
||||
|
||||
@ -44,9 +44,7 @@ import (
|
||||
|
||||
var n = flag.Int("n", 2000, "count")
|
||||
|
||||
func evalA(i, j int) float64 {
|
||||
return 1 / float64(((i + j)*(i + j + 1)/2+ i + 1));
|
||||
}
|
||||
func evalA(i, j int) float64 { return 1 / float64(((i+j)*(i+j+1)/2 + i + 1)) }
|
||||
|
||||
type Vec []float64
|
||||
|
||||
@ -54,7 +52,7 @@ func (v Vec) Times(u Vec) {
|
||||
for i := 0; i < len(v); i++ {
|
||||
v[i] = 0;
|
||||
for j := 0; j < len(u); j++ {
|
||||
v[i] += evalA(i, j)*u[j];
|
||||
v[i] += evalA(i, j) * u[j]
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -63,7 +61,7 @@ func (v Vec) TimesTransp(u Vec) {
|
||||
for i := 0; i < len(v); i++ {
|
||||
v[i] = 0;
|
||||
for j := 0; j < len(u); j++ {
|
||||
v[i] += evalA(j, i)*u[j];
|
||||
v[i] += evalA(j, i) * u[j]
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -79,7 +77,7 @@ func main() {
|
||||
N := *n;
|
||||
u := make(Vec, N);
|
||||
for i := 0; i < N; i++ {
|
||||
u[i] = 1;
|
||||
u[i] = 1
|
||||
}
|
||||
v := make(Vec, N);
|
||||
for i := 0; i < 10; i++ {
|
||||
@ -88,8 +86,8 @@ func main() {
|
||||
}
|
||||
var vBv, vv float64;
|
||||
for i := 0; i < N; i++ {
|
||||
vBv += u[i]*v[i];
|
||||
vv += v[i]*v[i];
|
||||
vBv += u[i] * v[i];
|
||||
vv += v[i] * v[i];
|
||||
}
|
||||
fmt.Printf("%0.9f\n", math.Sqrt(vBv/vv));
|
||||
}
|
||||
|
||||
@ -52,7 +52,7 @@ func f(i int, in <-chan int, out chan<- int) {
|
||||
fmt.Printf("%d\n", i);
|
||||
os.Exit(0);
|
||||
}
|
||||
out <- n - 1
|
||||
out <- n-1;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user