diff --git a/tencent/backend.md b/tencent/backend.md
index 0b52c21..6022c75 100644
--- a/tencent/backend.md
+++ b/tencent/backend.md
@@ -43,6 +43,7 @@
 |剑指 Offer 22. 链表中倒数第k个节点|5|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
 |322. 零钱兑换|5|https://leetcode-cn.com/problems/coin-change|
 |525. 连续数组|5|https://leetcode-cn.com/problems/contiguous-array|
+|33. 搜索旋转排序数组|5|https://leetcode-cn.com/problems/search-in-rotated-sorted-array|
 |169. 多数元素|4|https://leetcode-cn.com/problems/majority-element|
 |236. 二叉树的最近公共祖先|4|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree|
 |328. 奇偶链表|4|https://leetcode-cn.com/problems/odd-even-linked-list|
@@ -56,7 +57,6 @@
 |678. 有效的括号字符串|4|https://leetcode-cn.com/problems/valid-parenthesis-string|
 |补充题5. 手撕归并排序|4|https://leetcode-cn.com/problems/sort-an-array|
 |31. 下一个排列|4|https://leetcode-cn.com/problems/next-permutation|
-|33. 搜索旋转排序数组|4|https://leetcode-cn.com/problems/search-in-rotated-sorted-array|
 |199. 二叉树的右视图|4|https://leetcode-cn.com/problems/binary-tree-right-side-view|
 |887. 鸡蛋掉落|4|https://leetcode-cn.com/problems/super-egg-drop|
 |46. 全排列|4|https://leetcode-cn.com/problems/permutations|
@@ -179,4 +179,4 @@
 |567. 字符串的排列|1|https://leetcode-cn.com/problems/permutation-in-string|
 |107. 二叉树的层次遍历 II|1|https://leetcode-cn.com/problems/binary-tree-level-order-traversal-ii|
 |1219. 黄金矿工|1|https://leetcode-cn.com/problems/path-with-maximum-gold|
-|剑指 Offer 16. 数值的整数次方|1|https://leetcode-cn.com/problems/shu-zhi-de-zheng-shu-ci-fang-lcof|
\ No newline at end of file
+|剑指 Offer 16. 数值的整数次方|1|https://leetcode-cn.com/problems/shu-zhi-de-zheng-shu-ci-fang-lcof|