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feat: Revised the book (#978)
* Sync recent changes to the revised Word. * Revised the preface chapter * Revised the introduction chapter * Revised the computation complexity chapter * Revised the chapter data structure * Revised the chapter array and linked list * Revised the chapter stack and queue * Revised the chapter hashing * Revised the chapter tree * Revised the chapter heap * Revised the chapter graph * Revised the chapter searching * Reivised the sorting chapter * Revised the divide and conquer chapter * Revised the chapter backtacking * Revised the DP chapter * Revised the greedy chapter * Revised the appendix chapter * Revised the preface chapter doubly * Revised the figures
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@ -14,7 +14,7 @@ function bucketSort(nums) {
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}
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// 1. 将数组元素分配到各个桶中
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for (const num of nums) {
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// 输入数据范围 [0, 1),使用 num * k 映射到索引范围 [0, k-1]
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// 输入数据范围为 [0, 1),使用 num * k 映射到索引范围 [0, k-1]
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const i = Math.floor(num * k);
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// 将 num 添加进桶 i
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buckets[i].push(num);
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@ -36,7 +36,7 @@ function heapSort(nums) {
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}
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// 从堆中提取最大元素,循环 n-1 轮
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for (let i = nums.length - 1; i > 0; i--) {
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// 交换根节点与最右叶节点(即交换首元素与尾元素)
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// 交换根节点与最右叶节点(交换首元素与尾元素)
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[nums[0], nums[i]] = [nums[i], nums[0]];
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// 以根节点为起点,从顶至底进行堆化
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siftDown(nums, i, 0);
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@ -15,7 +15,7 @@ class QuickSort {
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/* 哨兵划分 */
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partition(nums, left, right) {
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// 以 nums[left] 作为基准数
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// 以 nums[left] 为基准数
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let i = left,
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j = right;
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while (i < j) {
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@ -74,7 +74,7 @@ class QuickSortMedian {
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);
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// 将中位数交换至数组最左端
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this.swap(nums, left, med);
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// 以 nums[left] 作为基准数
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// 以 nums[left] 为基准数
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let i = left,
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j = right;
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while (i < j) {
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@ -109,7 +109,7 @@ class QuickSortTailCall {
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/* 哨兵划分 */
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partition(nums, left, right) {
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// 以 nums[left] 作为基准数
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// 以 nums[left] 为基准数
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let i = left,
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j = right;
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while (i < j) {
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@ -127,7 +127,7 @@ class QuickSortTailCall {
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while (left < right) {
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// 哨兵划分操作
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let pivot = this.partition(nums, left, right);
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// 对两个子数组中较短的那个执行快排
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// 对两个子数组中较短的那个执行快速排序
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if (pivot - left < right - pivot) {
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this.quickSort(nums, left, pivot - 1); // 递归排序左子数组
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left = pivot + 1; // 剩余未排序区间为 [pivot + 1, right]
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@ -12,7 +12,7 @@ function digit(num, exp) {
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/* 计数排序(根据 nums 第 k 位排序) */
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function countingSortDigit(nums, exp) {
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// 十进制的位范围为 0~9 ,因此需要长度为 10 的桶
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// 十进制的位范围为 0~9 ,因此需要长度为 10 的桶数组
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const counter = new Array(10).fill(0);
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const n = nums.length;
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// 统计 0~9 各数字的出现次数
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