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@@ -385,8 +385,7 @@ comments: true
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/* 合并左子数组和右子数组 */
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// 左子数组区间 [left, mid]
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// 右子数组区间 [mid + 1, right]
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void merge(int[] nums, int left, int mid, int right)
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{
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void merge(int[] nums, int left, int mid, int right) {
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// 初始化辅助数组
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int[] tmp = nums[left..(right + 1)];
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// 左子数组的起始索引和结束索引
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@@ -396,8 +395,7 @@ comments: true
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// i, j 分别指向左子数组、右子数组的首元素
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int i = leftStart, j = rightStart;
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// 通过覆盖原数组 nums 来合并左子数组和右子数组
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for (int k = left; k <= right; k++)
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{
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for (int k = left; k <= right; k++) {
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// 若“左子数组已全部合并完”,则选取右子数组元素,并且 j++
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if (i > leftEnd)
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nums[k] = tmp[j++];
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@@ -411,8 +409,7 @@ comments: true
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}
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/* 归并排序 */
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void mergeSort(int[] nums, int left, int right)
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{
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void mergeSort(int[] nums, int left, int right) {
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// 终止条件
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if (left >= right) return; // 当子数组长度为 1 时终止递归
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// 划分阶段
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