add: 只出现一次的数字等
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20
src/array/select-sort.js
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20
src/array/select-sort.js
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// 选择排序
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// 平均时间复杂度 O(n * n), 最好情况 O(n * n),最坏情况 O(n * n)
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// 空间复杂度 O(1)
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// 稳定
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export default (arr) => {
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for (let n = 0, len = arr.length; n < len; n++) {
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let min = arr[n]
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for (let i = n + 1; i < len; i++) {
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if (arr[i] < min) {
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const tmp = min
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min = arr[i]
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arr[i] = tmp
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}
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}
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arr[n] = min
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}
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return arr
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}
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