Comments (1)
function insertionSort(list) {
if(Array.isArray(list)) {
if (list.length <= 1) return list
// i表示未排序区间
for(let i = 1; i < list.length; i++) {
// 待对比元素
const value = list[i]
let j = i - 1
// j表示已排序区间
for(; j >= 0; j--) {
// 这里选择从已排序末尾插入不是从开头
if(list[j] > value) {
list[j + 1] = list[j] // 交换位置
} else {
// 如果已排序的最大元素都小于或者等于待对比元素直接跳出
break
}
}
list[j + 1] = value // 插入元素
}
}
return list
}
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