高效刷leetcode

向右看齐 2023-03-01 12:30 14阅读 0赞

最近刚拿到几个offer（非算法岗），我是从0开始刷的，差不多刷了三个月，基本上刷的都是高频题，有很多都是面试过程中被问到的，分类也都是站在面试角度自己挨道题分的，建议从0开始的可以直接按我的来。

GitHub：

[https://github.com/yuanguangxin/LeetCodegithub.com][https_github.com_yuanguangxin_LeetCodegithub.com]

**LeetCode题目分类**

**Hash相关**

*  [q1\_两数之和][q1]

**链表操作**

*  [q2\_两数相加][q2]
 *  [q19\_删除链表的倒数第N个节点][q19_N]
 *  [q61\_旋转链表][q61]
 *  [q138\_复制带随机指针的链表][q138]
 *  [q206\_反转链表][q206]

**双指针遍历/滑动窗口**

*  [q3\_无重复字符的最长子串][q3]
 *  [q11\_盛最多水的容器][q11]
 *  [q15\_三数之和][q15]
 *  [q16\_最接近的三数之和][q16]
 *  [q26\_删除排序数组中的重复项][q26]
 *  [q42\_接雨水][q42]
 *  [q121\_买卖股票的最佳时机][q121]
 *  [q209\_长度最小的子数组][q209]

**快慢指针遍历**

*  [q141\_环形链表][q141]
 *  [q202\_快乐数][q202]
 *  [q876\_链表的中间结点][q876]

**区间合并**

*  [q56\_合并区间][q56]

**字符串操作**

*  [q6\_Z字形变换][q6_Z]
 *  [q14\_最长公共前缀][q14]
 *  [q763\_划分字母区间][q763]

**数字操作**

*  [q7\_整数反转][q7]
 *  [q8\_字符串转换整数][q8]
 *  [q9\_回文数][q9]
 *  [q43\_字符串相乘][q43]
 *  [q172\_阶乘后的零][q172]
 *  [q258\_各位相加][q258]

**数组操作**

*  [q54\_螺旋矩阵][q54]
 *  [q73\_矩阵置零][q73]
 *  [q945\_使数组唯一的最小增量][q945]

**栈相关**

*  [q20\_有效的括号][q20]
 *  [q32\_最长有效括号][q32]
 *  [q155\_最小栈][q155]
 *  [q224\_基本计算器][q224]
 *  [q316\_去除重复字母][q316]

**堆相关**

*  [q215\_数组中的第K个最大元素][q215_K]
 *  [q347\_前K个高频元素][q347_K]

**递归**

*  [q21\_合并两个有序链表][q21]
 *  [q101\_对称二叉树][q101]
 *  [q104\_二叉树的最大深度][q104]
 *  [q226\_翻转二叉树][q226]
 *  [q236\_二叉树的最近公共祖先][q236]

**分治法/二分法**

*  [q23\_合并K个排序链表][q23_K]
 *  [q33\_搜索旋转排序数组][q33]
 *  [q34\_在排序数组中查找元素的第一个和最后一个位置][q34]

**动态规划**

*  [q5\_最长回文子串][q5]
 *  [q53\_最大子序和][q53]
 *  [q62\_不同路径][q62]
 *  [q64\_最小路径和][q64]
 *  [q70\_爬楼梯][q70]
 *  [q118\_杨辉三角][q118]
 *  [q300\_最长上升子序列][q300]
 *  [q746\_使用最小花费爬楼梯][q746]
 *  [q1277\_统计全为1的正方形子矩阵][q1277_1]

**回溯法**

*  [q10\_正则表达式匹配][q10]
 *  [q22\_括号生成][q22]
 *  [q46\_全排列][q46]

**树的遍历**

*  [q94\_二叉树的中序遍历][q94]
 *  [q102\_二叉树的层次遍历][q102]
 *  [q110\_平衡二叉树][q110]
 *  [q144\_二叉树的前序遍历][q144]
 *  [q145\_二叉树的后序遍历][q145]

**二叉搜索树相关**

*  [q98\_验证二叉搜索树][q98]
 *  [q450\_删除二叉搜索树中的节点][q450]
 *  [q701\_二叉搜索树中的插入操作][q701]

[https_github.com_yuanguangxin_LeetCodegithub.com]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode
[q1]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/hash%25E7%259B%25B8%25E5%2585%25B3/q1_%25E4%25B8%25A4%25E6%2595%25B0%25E4%25B9%258B%25E5%2592%258C
[q2]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E9%2593%25BE%25E8%25A1%25A8%25E6%2593%258D%25E4%25BD%259C/q2_%25E4%25B8%25A4%25E6%2595%25B0%25E7%259B%25B8%25E5%258A%25A0
[q19_N]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E9%2593%25BE%25E8%25A1%25A8%25E6%2593%258D%25E4%25BD%259C/q19_%25E5%2588%25A0%25E9%2599%25A4%25E9%2593%25BE%25E8%25A1%25A8%25E7%259A%2584%25E5%2580%2592%25E6%2595%25B0%25E7%25AC%25ACN%25E4%25B8%25AA%25E8%258A%2582%25E7%2582%25B9
[q61]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E9%2593%25BE%25E8%25A1%25A8%25E6%2593%258D%25E4%25BD%259C/q61_%25E6%2597%258B%25E8%25BD%25AC%25E9%2593%25BE%25E8%25A1%25A8
[q138]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E9%2593%25BE%25E8%25A1%25A8%25E6%2593%258D%25E4%25BD%259C/q138_%25E5%25A4%258D%25E5%2588%25B6%25E5%25B8%25A6%25E9%259A%258F%25E6%259C%25BA%25E6%258C%2587%25E9%2592%2588%25E7%259A%2584%25E9%2593%25BE%25E8%25A1%25A8
[q206]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E9%2593%25BE%25E8%25A1%25A8%25E6%2593%258D%25E4%25BD%259C/q206_%25E5%258F%258D%25E8%25BD%25AC%25E9%2593%25BE%25E8%25A1%25A8
[q3]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E5%258F%258C%25E6%258C%2587%25E9%2592%2588%25E9%2581%258D%25E5%258E%2586/q3_%25E6%2597%25A0%25E9%2587%258D%25E5%25A4%258D%25E5%25AD%2597%25E7%25AC%25A6%25E7%259A%2584%25E6%259C%2580%25E9%2595%25BF%25E5%25AD%2590%25E4%25B8%25B2
[q11]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E5%258F%258C%25E6%258C%2587%25E9%2592%2588%25E9%2581%258D%25E5%258E%2586/q11_%25E7%259B%259B%25E6%259C%2580%25E5%25A4%259A%25E6%25B0%25B4%25E7%259A%2584%25E5%25AE%25B9%25E5%2599%25A8
[q15]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E5%258F%258C%25E6%258C%2587%25E9%2592%2588%25E9%2581%258D%25E5%258E%2586/q15_%25E4%25B8%2589%25E6%2595%25B0%25E4%25B9%258B%25E5%2592%258C
[q16]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E5%258F%258C%25E6%258C%2587%25E9%2592%2588%25E9%2581%258D%25E5%258E%2586/q16_%25E6%259C%2580%25E6%258E%25A5%25E8%25BF%2591%25E7%259A%2584%25E4%25B8%2589%25E6%2595%25B0%25E4%25B9%258B%25E5%2592%258C
[q26]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E5%258F%258C%25E6%258C%2587%25E9%2592%2588%25E9%2581%258D%25E5%258E%2586/q26_%25E5%2588%25A0%25E9%2599%25A4%25E6%258E%2592%25E5%25BA%258F%25E6%2595%25B0%25E7%25BB%2584%25E4%25B8%25AD%25E7%259A%2584%25E9%2587%258D%25E5%25A4%258D%25E9%25A1%25B9
[q42]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E5%258F%258C%25E6%258C%2587%25E9%2592%2588%25E9%2581%258D%25E5%258E%2586/q42_%25E6%258E%25A5%25E9%259B%25A8%25E6%25B0%25B4
[q121]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E5%258F%258C%25E6%258C%2587%25E9%2592%2588%25E9%2581%258D%25E5%258E%2586/q121_%25E4%25B9%25B0%25E5%258D%2596%25E8%2582%25A1%25E7%25A5%25A8%25E7%259A%2584%25E6%259C%2580%25E4%25BD%25B3%25E6%2597%25B6%25E6%259C%25BA
[q209]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E5%258F%258C%25E6%258C%2587%25E9%2592%2588%25E9%2581%258D%25E5%258E%2586/q209_%25E9%2595%25BF%25E5%25BA%25A6%25E6%259C%2580%25E5%25B0%258F%25E7%259A%2584%25E5%25AD%2590%25E6%2595%25B0%25E7%25BB%2584
[q141]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E5%25BF%25AB%25E6%2585%25A2%25E6%258C%2587%25E9%2592%2588%25E9%2581%258D%25E5%258E%2586/q141_%25E7%258E%25AF%25E5%25BD%25A2%25E9%2593%25BE%25E8%25A1%25A8
[q202]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E5%25BF%25AB%25E6%2585%25A2%25E6%258C%2587%25E9%2592%2588%25E9%2581%258D%25E5%258E%2586/q202_%25E5%25BF%25AB%25E4%25B9%2590%25E6%2595%25B0
[q876]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E5%25BF%25AB%25E6%2585%25A2%25E6%258C%2587%25E9%2592%2588%25E9%2581%258D%25E5%258E%2586/q876_%25E9%2593%25BE%25E8%25A1%25A8%25E7%259A%2584%25E4%25B8%25AD%25E9%2597%25B4%25E7%25BB%2593%25E7%2582%25B9
[q56]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E5%258C%25BA%25E9%2597%25B4%25E5%2590%2588%25E5%25B9%25B6/q56_%25E5%2590%2588%25E5%25B9%25B6%25E5%258C%25BA%25E9%2597%25B4
[q6_Z]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E5%25AD%2597%25E7%25AC%25A6%25E4%25B8%25B2%25E6%2593%258D%25E4%25BD%259C/q6_Z%25E5%25AD%2597%25E5%25BD%25A2%25E5%258F%2598%25E6%258D%25A2
[q14]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E5%25AD%2597%25E7%25AC%25A6%25E4%25B8%25B2%25E6%2593%258D%25E4%25BD%259C/q14_%25E6%259C%2580%25E9%2595%25BF%25E5%2585%25AC%25E5%2585%25B1%25E5%2589%258D%25E7%25BC%2580
[q763]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E5%25AD%2597%25E7%25AC%25A6%25E4%25B8%25B2%25E6%2593%258D%25E4%25BD%259C/q763_%25E5%2588%2592%25E5%2588%2586%25E5%25AD%2597%25E6%25AF%258D%25E5%258C%25BA%25E9%2597%25B4
[q7]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E6%2595%25B0%25E5%25AD%2597%25E6%2593%258D%25E4%25BD%259C/q7_%25E6%2595%25B4%25E6%2595%25B0%25E5%258F%258D%25E8%25BD%25AC
[q8]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E6%2595%25B0%25E5%25AD%2597%25E6%2593%258D%25E4%25BD%259C/q8_%25E5%25AD%2597%25E7%25AC%25A6%25E4%25B8%25B2%25E8%25BD%25AC%25E6%258D%25A2%25E6%2595%25B4%25E6%2595%25B0
[q9]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E6%2595%25B0%25E5%25AD%2597%25E6%2593%258D%25E4%25BD%259C/q9_%25E5%259B%259E%25E6%2596%2587%25E6%2595%25B0
[q43]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E6%2595%25B0%25E5%25AD%2597%25E6%2593%258D%25E4%25BD%259C/q43_%25E5%25AD%2597%25E7%25AC%25A6%25E4%25B8%25B2%25E7%259B%25B8%25E4%25B9%2598
[q172]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E6%2595%25B0%25E5%25AD%2597%25E6%2593%258D%25E4%25BD%259C/q172_%25E9%2598%25B6%25E4%25B9%2598%25E5%2590%258E%25E7%259A%2584%25E9%259B%25B6
[q258]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E6%2595%25B0%25E5%25AD%2597%25E6%2593%258D%25E4%25BD%259C/q258_%25E5%2590%2584%25E4%25BD%258D%25E7%259B%25B8%25E5%258A%25A0
[q54]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E6%2595%25B0%25E7%25BB%2584%25E6%2593%258D%25E4%25BD%259C/q54_%25E8%259E%25BA%25E6%2597%258B%25E7%259F%25A9%25E9%2598%25B5
[q73]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E6%2595%25B0%25E7%25BB%2584%25E6%2593%258D%25E4%25BD%259C/q73_%25E7%259F%25A9%25E9%2598%25B5%25E7%25BD%25AE%25E9%259B%25B6
[q945]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E6%2595%25B0%25E7%25BB%2584%25E6%2593%258D%25E4%25BD%259C/q945_%25E4%25BD%25BF%25E6%2595%25B0%25E7%25BB%2584%25E5%2594%25AF%25E4%25B8%2580%25E7%259A%2584%25E6%259C%2580%25E5%25B0%258F%25E5%25A2%259E%25E9%2587%258F
[q20]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E6%25A0%2588%25E7%259B%25B8%25E5%2585%25B3/q20_%25E6%259C%2589%25E6%2595%2588%25E7%259A%2584%25E6%258B%25AC%25E5%258F%25B7
[q32]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E6%25A0%2588%25E7%259B%25B8%25E5%2585%25B3/q32_%25E6%259C%2580%25E9%2595%25BF%25E6%259C%2589%25E6%2595%2588%25E6%258B%25AC%25E5%258F%25B7
[q155]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E6%25A0%2588%25E7%259B%25B8%25E5%2585%25B3/q155_%25E6%259C%2580%25E5%25B0%258F%25E6%25A0%2588
[q224]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E6%25A0%2588%25E7%259B%25B8%25E5%2585%25B3/q224_%25E5%259F%25BA%25E6%259C%25AC%25E8%25AE%25A1%25E7%25AE%2597%25E5%2599%25A8
[q316]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E6%25A0%2588%25E7%259B%25B8%25E5%2585%25B3/q316_%25E5%258E%25BB%25E9%2599%25A4%25E9%2587%258D%25E5%25A4%258D%25E5%25AD%2597%25E6%25AF%258D
[q215_K]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E5%25A0%2586%25E7%259B%25B8%25E5%2585%25B3/q215_%25E6%2595%25B0%25E7%25BB%2584%25E4%25B8%25AD%25E7%259A%2584%25E7%25AC%25ACK%25E4%25B8%25AA%25E6%259C%2580%25E5%25A4%25A7%25E5%2585%2583%25E7%25B4%25A0
[q347_K]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E5%25A0%2586%25E7%259B%25B8%25E5%2585%25B3/q347_%25E5%2589%258DK%25E4%25B8%25AA%25E9%25AB%2598%25E9%25A2%2591%25E5%2585%2583%25E7%25B4%25A0
[q21]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E9%2580%2592%25E5%25BD%2592/q21_%25E5%2590%2588%25E5%25B9%25B6%25E4%25B8%25A4%25E4%25B8%25AA%25E6%259C%2589%25E5%25BA%258F%25E9%2593%25BE%25E8%25A1%25A8
[q101]: https://link.zhihu.com/?target=https%3A//github.com/yuanguangxin/LeetCode/tree/master/src/%25E9%2580%2592%25E5%25BD%2592/q101_%25E5%25AF%25B9%25E7%25A7%25B0%25E4%25BA%258C%25E5%258F%2589%25E6%25A0%2591
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