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Update merge_sort.js

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GN-Yu 2022-12-30 13:22:31 -05:00 committed by GitHub
parent 6ba808ed36
commit 96355afb1c
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1 changed files with 2 additions and 2 deletions
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codes/javascript/chapter_sorting/merge_sort.js
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@ -23,10 +23,10 @@ function merge(nums, left, mid, right) {
// 若“左子数组已全部合并完”，则选取右子数组元素，并且 j++
if (i > leftEnd) {
nums[k] = tmp[j++];
// 否则，若“右子数组已全部合并完”或“左子数组元素 < 右子数组元素”，则选取左子数组元素，并且 i++
// 否则，若“右子数组已全部合并完”或“左子数组元素 <= 右子数组元素”，则选取左子数组元素，并且 i++
} else if (j > rightEnd || tmp[i] <= tmp[j]) {
nums[k] = tmp[i++];
// 否则，若“左子数组元素 > 右子数组元素”，则选取右子数组元素，并且 j++
// 否则，若“左右子数组都未全部合并完”且“左子数组元素 > 右子数组元素”，则选取右子数组元素，并且 j++
} else {
nums[k] = tmp[j++];
}