数据结构230-快速排序的枢纽实现代码

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>ArrayList</title>
</head>
<body>
<script>
function ArrayList() {
//属性
this.array = [];
//
ArrayList.prototype.insert = function (item) {
this.array.push(item);
};
ArrayList.prototype.toString = function (item) {
return this.array.join("-");
};
ArrayList.prototype.swap = function (m, n) {
var temp = this.array[m];
this.array[m] = this.array[n];
this.array[n] = temp;
};
ArrayList.prototype.median = function (left,right) {
//去除中间的数
var center=Math.floor((left+right)/2)
if(this.array[left]>this.array[center]){
this.swap(left,center)
}
if(this.array[center]>this.array[right]){
this.swap(center,right)
}
if(this.array[left]>this.array[right]){
this.swap(left,right)
}
//将center换到right-1的位置
this.swap(center,right-1)
return this.array[right-1]
}
}
</script>
</body>
</html>

posted @   前端导师歌谣  阅读(14)  评论(0编辑  收藏  举报  
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