Update changes

Author: CompetitiveLin

README.md

@@ -26,6 +26,7 @@
 
 | 最近提交时间 | 题目 | 题目难度 | 提交次数| 重刷次数 |
 | ---- | ---- | ---- | ---- | ---- |
+| 2024-08-24 10:22 | [#77 组合](https://leetcode.cn/problems/combinations) | MEDIUM | 6 | **2** |
 | 2024-08-24 09:43 | [#LCR 143 子结构判断](https://leetcode.cn/problems/shu-de-zi-jie-gou-lcof) | MEDIUM | 2 | 1 |
 | 2024-08-20 18:25 | [#43 字符串相乘](https://leetcode.cn/problems/multiply-strings) | MEDIUM | 1 | 1 |
 | 2024-08-20 14:57 | [#145 二叉树的后序遍历](https://leetcode.cn/problems/binary-tree-postorder-traversal) | EASY | 1 | 1 |
@@ -134,7 +135,6 @@
 | 2024-01-23 22:15 | [#26 删除有序数组中的重复项](https://leetcode.cn/problems/remove-duplicates-from-sorted-array) | EASY | 2 | 1 |
 | 2024-01-23 22:05 | [#80 删除有序数组中的重复项 II](https://leetcode.cn/problems/remove-duplicates-from-sorted-array-ii) | MEDIUM | 1 | 1 |
 | 2024-01-23 16:34 | [#25 K 个一组翻转链表](https://leetcode.cn/problems/reverse-nodes-in-k-group) | HARD | 1 | 1 |
-| 2024-01-23 09:27 | [#77 组合](https://leetcode.cn/problems/combinations) | MEDIUM | 2 | 1 |
 | 2024-01-22 11:10 | [#670 最大交换](https://leetcode.cn/problems/maximum-swap) | MEDIUM | 13 | **2** |
 | 2024-01-20 15:18 | [#82 删除排序链表中的重复元素 II](https://leetcode.cn/problems/remove-duplicates-from-sorted-list-ii) | MEDIUM | 3 | **2** |
 | 2024-01-20 13:17 | [#373 查找和最小的 K 对数字](https://leetcode.cn/problems/find-k-pairs-with-smallest-sums) | MEDIUM | 3 | **2** |