feat: 添加桶排序

sort/bucket-sort.mjs

@@ -0,0 +1,28 @@
+function bucketSort(arr, bucketSize = 5) {
+  const maxVal = Math.max(...arr);
+  const minVal = Math.min(...arr);
+
+  const bucketCount = Math.floor((maxVal - minVal) / bucketSize) + 1; // 通过最大值和最小值计算桶子的个数
+  const buckets = new Array(bucketCount).fill().map(() => []);
+
+  // 将元素放入桶中
+  for (let i = 0; i < arr.length; i++) {
+    const bucketIndex = Math.floor((arr[i] - minVal) / bucketSize); // 通过当前桶判断该值应该放在哪个桶里面
+    buckets[bucketIndex].push(arr[i]);
+  }
+
+  // 在每个桶内部进行排序
+  for (let i = 0; i < buckets.length; i++) {
+    buckets[i].sort((a, b) => a - b); // 此处可以使用对小数组排序快的数组，优先选择插入排序
+  }
+
+  // 合并所有桶的元素
+  let result = [];
+  for (let i = 0; i < buckets.length; i++) { // 遍历所有的桶，把每个桶里面的数据放到新数组
+    result = result.concat(buckets[i]);
+  }
+
+  return result;
+}
+
+export default bucketSort;

sort/test.mjs

@@ -1,14 +1,18 @@
-import { generateRandomArray, measureTime } from '../util/index.mjs';
+import { generateRandomArray, isSort, measureTime } from '../util/index.mjs';
 import { shellSort } from './shell-sort.mjs';
 import insertionSort from './insertion-sort.mjs';
 import { bubbleSort } from './bubble-sort.mjs';
 import { mergeSort } from './merge-sort.mjs';
 import {
-  quickSort, quickSort2, quickSort3, quickSort4, quickSort5,
+  quickSort,
+  quickSort2,
+  quickSort3,
+  quickSort4,
+  quickSort5,
 } from './quick-sort.mjs';
+import bucketSort from './bucket-sort.mjs';
 
 const arr = generateRandomArray(100);
-console.log(arr);
 
 measureTime(bubbleSort, arr.slice());
 measureTime(insertionSort, arr.slice());
@@ -19,3 +23,4 @@ measureTime(quickSort2, arr.slice()); // 挖坑法分解数组
 measureTime(quickSort3, arr.slice()); // 前后指针分解数组
 measureTime(quickSort4, arr.slice()); // 不使用递归处理
 measureTime(quickSort5, arr.slice()); // 去除不必要代码
+measureTime(bucketSort, arr.slice()); // 去除不必要代码