排序

https://blog.nowcoder.net/n/9580cae1bd74467782ee7c0a40376aa3
合并两个有序数组
https://blog.nowcoder.net/n/21c0ad5970eb4ff281c732863ad0bd4a
最小的k个数
https://blog.nowcoder.net/n/203599c0c609451c99bd4d1ee4d8b239

链表

链表中的倒数第k个结点
https://blog.nowcoder.net/n/4e57664df6974486bc352aa5a1e4613c
链表中的结点每k个一组反转
https://blog.nowcoder.net/n/452c54963c11486abb824d12d4117f83
删除链表的倒数第n个结点
https://blog.nowcoder.net/n/05881512f74a487a944cd43516cf8d88
反转链表
https://blog.nowcoder.net/n/31e6abf3dd5d4970a03f7a483ca8e0ab
链表内指定区间反转
https://blog.nowcoder.net/n/81598472c855455caa8168388e1db2af
判断链表中是否有环
https://blog.nowcoder.net/n/5820641b0173472b9f6b14f1bd642b37
链表中环的入口结点
https://blog.nowcoder.net/n/acb868ca61674d359755ebdb3abbc357
两个链表第一个公共节点
https://blog.nowcoder.net/n/e1b81561423a4da6be54f5ef8dd94dc4
合并有序链表
https://blog.nowcoder.net/n/7ad1e4095b10433cb2696334dd609a20
二叉树的遍历
https://blog.nowcoder.net/n/6bd6c57479864db59ab6afc35000506f
二叉树的层序遍历
https://blog.nowcoder.net/n/78805ba650c94234924d9cbc601e44f5
二叉树的所有路径和
https://blog.nowcoder.net/n/bb3f643a85aa4fc6aa926c177e4d8b0a

数据结构

括号序列是否合法
https://blog.nowcoder.net/n/a489d77c97ea4a31a319260538c7ef1b
getmin功能的栈
https://blog.nowcoder.net/n/ccec6fb27b36412aaa05168fa6990c5f
两个栈实现队列

设计LRU缓存结构
https://blog.nowcoder.net/n/670581a842f74957aa16fdd007212b4c

字符串

最长回文子串
https://blog.nowcoder.net/n/dbca7567b8654250a8a493ae3e455f8d