Created
January 29, 2015 05:47
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package main | |
import ( | |
"code.google.com/p/go-tour/tree" | |
"fmt" | |
) | |
func Walk(t *tree.Tree, ch chan int) { | |
WalkIter(t, ch) | |
close(ch) | |
} | |
func WalkIter(t *tree.Tree, ch chan int) { | |
if t == nil { | |
return | |
} | |
WalkIter(t.Left, ch) | |
ch <- t.Value | |
WalkIter(t.Right, ch) | |
} | |
// 二分木の比較 | |
func Same(t1, t2 *tree.Tree) bool { | |
c1 := make(chan int, 10) | |
c2 := make(chan int, 10) | |
go Walk(t1, c1) | |
go Walk(t2, c2) | |
for i := range c1 { | |
if i != <-c2 { | |
return false | |
} | |
} | |
return true | |
} | |
func main() { | |
// fmt.Println(tree.New(1)) | |
// ((((1 (2)) 3 (4)) 5 ((6) 7 ((8) 9))) 10) | |
// 空リストを表示してもpanicにはならない | |
// 長さ10のチャンネルを作成 | |
ch := make(chan int, 10) | |
go Walk(tree.New(1), ch) | |
for i := range ch { | |
fmt.Println(i) | |
} | |
fmt.Println(Same(tree.New(1), tree.New(1))) | |
fmt.Println(Same(tree.New(1), tree.New(2))) | |
} |
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