一、位运算
二进制中1的个数 ——15 https://blog.csdn.net/qq_22527013/article/details/88729605
不用加减乘除做加法 —— 65 https://blog.csdn.net/qq_22527013/article/details/91413669
LeetCode 371. Sum of Two Integers （二进制实现加法）—— https://blog.csdn.net/qq_22527013/article/details/92609495
二、二叉树
重建二叉树——7 https://blog.csdn.net/qq_22527013/article/details/88350788
LeetCode 108. Convert Sorted Array to Binary Search Tree（排序数组构建二叉搜索树）—— https://blog.csdn.net/qq_22527013/article/details/91974763
二叉树的下一个节点 —— 8 https://blog.csdn.net/qq_22527013/article/details/88390325
树的子结构 —— 26 https://blog.csdn.net/qq_22527013/article/details/89468523
二叉树的镜像 —— 27 https://blog.csdn.net/qq_22527013/article/details/89640140
LeetCode 101. Symmetric Tree —— https://blog.csdn.net/qq_22527013/article/details/91873430
对称的二叉树 —— 28 https://blog.csdn.net/qq_22527013/article/details/89640697
打印二叉树 —— 32 https://blog.csdn.net/qq_22527013/article/details/89848135
二叉搜素树的后序遍历序列 —— 33 https://blog.csdn.net/qq_22527013/article/details/89881687
二叉树中和为某一值的路径 —— 34 https://blog.csdn.net/qq_22527013/article/details/89885408
二叉搜索树与双向链表 —— 36 https://blog.csdn.net/qq_22527013/article/details/89922068
序列化二叉树 —— 37 https://blog.csdn.net/qq_22527013/article/details/90175201
数据流中位数 —— 41 https://blog.csdn.net/qq_22527013/article/details/90443673
二叉搜索树第k个结点 —— 54 https://blog.csdn.net/qq_22527013/article/details/90764714
二叉树的深度 —— 55 https://blog.csdn.net/qq_22527013/article/details/90767878
平衡二叉树 —— 55 https://blog.csdn.net/qq_22527013/article/details/90767878
三、字符串
替换空格 —— 5 https://blog.csdn.net/qq_22527013/article/details/88317965
正则表达式的匹配——19 https://blog.csdn.net/qq_22527013/article/details/91573270
表示数值的字符串 —— 20 https://blog.csdn.net/qq_22527013/article/details/89214223
字符串的排列 —— 38 https://blog.csdn.net/qq_22527013/article/details/90175376
把数字翻译成字符串 —— 46 https://blog.csdn.net/qq_22527013/article/details/90601503
最长不含重复字符的子字符串 —— 48 https://blog.csdn.net/qq_22527013/article/details/90666347
第一个只出现一次的字符 —— 50 https://blog.csdn.net/qq_22527013/article/details/90679476
LeetCode 387. First Unique Character in a String —— https://blog.csdn.net/qq_22527013/article/details/92607708
字符流中第一个不重复的字符 —— 50 https://blog.csdn.net/qq_22527013/article/details/90679476
翻转字符串 —— 58 https://blog.csdn.net/qq_22527013/article/details/91371032
左旋转字符串 —— 58 https://blog.csdn.net/qq_22527013/article/details/91371032
把字符串转换为整数 —— https://blog.csdn.net/qq_22527013/article/details/91562533
LeetCode 242. Valid Anagram（同子母异序） —— https://blog.csdn.net/qq_22527013/article/details/89162954
LeetCode 38. Count and Say（数数并用字符串描述） —— https://blog.csdn.net/qq_22527013/article/details/89179175
LeetCode 125. Valid Palindrome （判断字符串回文）—— https://blog.csdn.net/qq_22527013/article/details/92429293
四、数组
数组中重复的数字 —— 3 https://blog.csdn.net/qq_22527013/article/details/88235419
二维数组的查找 —— 4 https://blog.csdn.net/qq_22527013/article/details/88314162
旋转数组的最小数字 ——11 https://blog.csdn.net/qq_22527013/article/details/88558963
调整数组顺序使奇数位于偶数前面 —— 21 https://blog.csdn.net/qq_22527013/article/details/89240880
数超过一半的数字 —— 39 https://blog.csdn.net/qq_22527013/article/details/90209290
连续子数组的最大和 —— 42 https://blog.csdn.net/qq_22527013/article/details/90477241
LeetCode 53. Maximum Subarray —— https://blog.csdn.net/qq_22527013/article/details/89676056
数字序列中某一位的数字 —— 44 https://blog.csdn.net/qq_22527013/article/details/90575194
数组中出现次把数组排成最小的数 —— 45 https://blog.csdn.net/qq_22527013/article/details/90576891
数组中的逆序对 —— 51 https://blog.csdn.net/qq_22527013/article/details/90692683
数字在排序数组中出现的次数 —— 53 https://blog.csdn.net/qq_22527013/article/details/90760019
数组中数字出现的次数 —— 56 https://blog.csdn.net/qq_22527013/article/details/90897147
LeetCode 136. Single Number —— https://blog.csdn.net/qq_22527013/article/details/92434651
和为S的两个数 —— 57 https://blog.csdn.net/qq_22527013/article/details/90899383
和为S的连续正数序列 —— 57 https://blog.csdn.net/qq_22527013/article/details/90899383
股票的最大利润 —— 63 https://blog.csdn.net/qq_22527013/article/details/91400294
LeetCode 121. Best Time to Buy and Sell Stock —— https://blog.csdn.net/qq_22527013/article/details/91400294
构建乘积数组 —— 66 https://blog.csdn.net/qq_22527013/article/details/91415458
LeetCode 66. Plus One（给数组描述的数+1并转化成数组）—— https://blog.csdn.net/qq_22527013/article/details/89677364
LeetCode 88. Merge Sorted Array （合并排序数组）—— https://blog.csdn.net/qq_22527013/article/details/91869060
LeetCode 118. Pascal's Triangle（杨辉三角）—— https://blog.csdn.net/qq_22527013/article/details/92396273
LeetCode 350. Intersection of Two Arrays II （数组并集）—— https://blog.csdn.net/qq_22527013/article/details/92617785
五、其他
斐波那契数列 ——10 https://blog.csdn.net/qq_22527013/article/details/88415689
LeetCode 70. Climbing Stairs —— https://blog.csdn.net/qq_22527013/article/details/91867477
矩形覆盖 ——10 https://blog.csdn.net/qq_22527013/article/details/88415689
跳台阶 —— 10 https://blog.csdn.net/qq_22527013/article/details/88415689
变态跳台阶——10 https://blog.csdn.net/qq_22527013/article/details/88415689
剪绳子 ——14 https://blog.csdn.net/qq_22527013/article/details/88726455
数值的整数次方 —— 16 https://blog.csdn.net/qq_22527013/article/details/88808199
打印从1到最大的n位数 —— 17 https://blog.csdn.net/qq_22527013/article/details/89151005
从1到n中的整数中1出现的次数 —— 43 https://blog.csdn.net/qq_22527013/article/details/90483820
丑数 —— 49 https://blog.csdn.net/qq_22527013/article/details/90678391
n个骰子的点数 —— 60 https://blog.csdn.net/qq_22527013/article/details/91382704
扑克牌顺子 —— 61 https://blog.csdn.net/qq_22527013/article/details/91396917
圆圈中剩下的数 —— 62 https://blog.csdn.net/qq_22527013/article/details/91398403
求1+2+3+...+n ——64 https://blog.csdn.net/qq_22527013/article/details/91401126
LeetCode 69. Sqrt(x) —— https://blog.csdn.net/qq_22527013/article/details/91856138
LeetCode 412. Fizz Buzz —— https://blog.csdn.net/qq_22527013/article/details/92602463
六、矩阵
顺时针打印矩阵 —— 29 https://blog.csdn.net/qq_22527013/article/details/89641098
礼物的最大价值 —— 47 https://blog.csdn.net/qq_22527013/article/details/90639806
七、堆
最小的k个数 —— 40 https://blog.csdn.net/qq_22527013/article/details/90246965
八、栈和队列
用两个栈实现队列 —— 9 https://blog.csdn.net/qq_22527013/article/details/88404687
包含min函数的栈 —— 30 https://blog.csdn.net/qq_22527013/article/details/89739627
栈的压入、弹出序列 —— 31 https://blog.csdn.net/qq_22527013/article/details/89844375
滑动窗口的最大值 —— 59 https://blog.csdn.net/qq_22527013/article/details/91373331
队列的最大值 —— 59 https://blog.csdn.net/qq_22527013/article/details/91373331
九、回溯法
矩阵中的路径 ——12 https://blog.csdn.net/qq_22527013/article/details/88560328
机器人运动范围 —— 13 https://blog.csdn.net/qq_22527013/article/details/88568498
十、链表
从尾到头打印链表 —— 6 https://blog.csdn.net/qq_22527013/article/details/88339521
删除链表中的节点 —— 18 https://blog.csdn.net/qq_22527013/article/details/89174976
LeetCode 237. Delete Node in a Linked List —— 18 https://blog.csdn.net/qq_22527013/article/details/89162862
链表中倒数第k个结点 —— 22 https://blog.csdn.net/qq_22527013/article/details/89315197
链表中环的入口节点 —— 23 https://blog.csdn.net/qq_22527013/article/details/89316819
反转链表 —— 24 https://blog.csdn.net/qq_22527013/article/details/89466150
合并两个排序的链表 —— 25 https://blog.csdn.net/qq_22527013/article/details/89467049
复杂链表的复制 —— 35 https://blog.csdn.net/qq_22527013/article/details/89920750
两个链表的第一个公共结点 —— 52 https://blog.csdn.net/qq_22527013/article/details/90697784
链表回文结构 —— https://blog.csdn.net/qq_22527013/article/details/89150545