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Merge pull request #884 from CJ-cooper6/master
添加225. 用队列实现栈 Go 两个队列实现版本
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@ -359,6 +359,72 @@ class MyStack:
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Go:
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使用两个队列实现
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```go
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type MyStack struct {
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//创建两个队列
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queue1 []int
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queue2 []int
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}
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func Constructor() MyStack {
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return MyStack{ //初始化
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queue1:make([]int,0),
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queue2:make([]int,0),
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}
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}
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func (this *MyStack) Push(x int) {
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//先将数据存在queue2中
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this.queue2 = append(this.queue2,x)
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//将queue1中所有元素移到queue2中,再将两个队列进行交换
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this.Move()
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}
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func (this *MyStack) Move(){
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if len(this.queue1) == 0{
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//交换,queue1置为queue2,queue2置为空
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this.queue1,this.queue2 = this.queue2,this.queue1
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}else{
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//queue1元素从头开始一个一个追加到queue2中
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this.queue2 = append(this.queue2,this.queue1[0])
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this.queue1 = this.queue1[1:] //去除第一个元素
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this.Move() //重复
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}
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}
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func (this *MyStack) Pop() int {
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val := this.queue1[0]
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this.queue1 = this.queue1[1:] //去除第一个元素
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return val
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}
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func (this *MyStack) Top() int {
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return this.queue1[0] //直接返回
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}
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func (this *MyStack) Empty() bool {
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return len(this.queue1) == 0
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}
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/**
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* Your MyStack object will be instantiated and called as such:
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* obj := Constructor();
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* obj.Push(x);
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* param_2 := obj.Pop();
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* param_3 := obj.Top();
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* param_4 := obj.Empty();
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*/
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```
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使用一个队列实现
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```go
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type MyStack struct {
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queue []int//创建一个队列
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