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| 1 | +- 题目原文链接见[issues](https://github.com/afatcoder/LeetcodeTop/issues) |
| 2 | +- 若想按部门/难度/题型筛选题目，可以在[CodeTop](https://codetop.cc) 查询 |
| 3 | + |
| 4 | +|题目|出现次数|链接| |
| 5 | +|-|-|-| |
| 6 | +|3. 无重复字符的最长子串|2|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters| |
| 7 | +|146. LRU缓存机制|2|https://leetcode-cn.com/problems/lru-cache| |
| 8 | +|120. 三角形最小路径和|2|https://leetcode-cn.com/problems/triangle| |
| 9 | +|102. 二叉树的层序遍历|2|https://leetcode-cn.com/problems/binary-tree-level-order-traversal| |
| 10 | +|110. 平衡二叉树|2|https://leetcode-cn.com/problems/balanced-binary-tree| |
| 11 | +|200. 岛屿数量|1|https://leetcode-cn.com/problems/number-of-islands| |
| 12 | +|10. 正则表达式匹配|1|https://leetcode-cn.com/problems/regular-expression-matching| |
| 13 | +|129. 求根到叶子节点数字之和|1|https://leetcode-cn.com/problems/sum-root-to-leaf-numbers| |
| 14 | +|227. 基本计算器 II|1|https://leetcode-cn.com/problems/basic-calculator-ii| |
| 15 | +|343. 整数拆分|1|https://leetcode-cn.com/problems/integer-break| |
| 16 | +|215. 数组中的第K个最大元素|1|https://leetcode-cn.com/problems/kth-largest-element-in-an-array| |
| 17 | +|121. 买卖股票的最佳时机|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock| |
| 18 | +|剑指 Offer 53 - II. 0～n-1中缺失的数字|1|https://leetcode-cn.com/problems/que-shi-de-shu-zi-lcof| |
| 19 | +|378. 有序矩阵中第K小的元素|1|https://leetcode-cn.com/problems/kth-smallest-element-in-a-sorted-matrix| |
| 20 | +|8. 字符串转换整数 (atoi)|1|https://leetcode-cn.com/problems/string-to-integer-atoi| |
| 21 | +|486. 预测赢家|1|https://leetcode-cn.com/problems/predict-the-winner| |
| 22 | +|15. 三数之和|1|https://leetcode-cn.com/problems/3sum| |
| 23 | +|781. 森林中的兔子|1|https://leetcode-cn.com/problems/rabbits-in-forest| |
| 24 | +|剑指 Offer 36. 二叉搜索树与双向链表|1|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-yu-shuang-xiang-lian-biao-lcof| |
| 25 | +|46. 全排列|1|https://leetcode-cn.com/problems/permutations| |
| 26 | +|23. 合并K个排序链表|1|https://leetcode-cn.com/problems/merge-k-sorted-lists| |
| 27 | +|460. LFU缓存|1|https://leetcode-cn.com/problems/lfu-cache| |
| 28 | +|2. 两数相加|1|https://leetcode-cn.com/problems/add-two-numbers| |
| 29 | +|4. 寻找两个正序数组的中位数|1|https://leetcode-cn.com/problems/median-of-two-sorted-arrays| |
| 30 | +|611. 有效三角形的个数|1|https://leetcode-cn.com/problems/valid-triangle-number| |
| 31 | +|面试题 08.05. 递归乘法|1|https://leetcode-cn.com/problems/recursive-mulitply-lcci| |