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Update the book based on the revised second edition (#1014)
* Revised the book * Update the book with the second revised edition * Revise base on the manuscript of the first edition
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@ -8,13 +8,13 @@
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/* 合并左子数组和右子数组 */
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void merge(int *nums, int left, int mid, int right) {
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// 左子数组区间 [left, mid], 右子数组区间 [mid+1, right]
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// 左子数组区间为 [left, mid], 右子数组区间为 [mid+1, right]
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// 创建一个临时数组 tmp ,用于存放合并后的结果
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int tmpSize = right - left + 1;
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int *tmp = (int *)malloc(tmpSize * sizeof(int));
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// 初始化左子数组和右子数组的起始索引
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int i = left, j = mid + 1, k = 0;
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// 当左右子数组都还有元素时,比较并将较小的元素复制到临时数组中
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// 当左右子数组都还有元素时,进行比较并将较小的元素复制到临时数组中
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while (i <= mid && j <= right) {
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if (nums[i] <= nums[j]) {
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tmp[k++] = nums[i++];
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@ -50,7 +50,7 @@ void quickSort(int nums[], int left, int right) {
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}
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/* 快速排序类(中位基准数优化) */
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// 选取三个元素的中位数
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// 选取三个候选元素的中位数
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int medianThree(int nums[], int left, int mid, int right) {
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// 此处使用异或运算来简化代码
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// 异或规则为 0 ^ 0 = 1 ^ 1 = 0, 0 ^ 1 = 1 ^ 0 = 1
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