Given an array and a value, remove all instances of that value in place and return the new length. The …
标签:LeetCode题目解答
[LeetCode] Remove Duplicates from Sorted Array 有序数组中去除重复项, Remove Duplicates from Sorted List
Given a sorted array nums, remove the duplicates in-place such that each element appear …
[LeetCode] Reverse Nodes in k-Group 每k个一组翻转链表
Given a linked list, reverse the nodes of a linked list k at a time and return its modified l…
[LeetCode] Swap Nodes in Pairs 成对交换节点
Given a linked list, swap every two adjacent nodes and return its head. Example: Given 1->2->…
[LeetCode] Generate Parentheses 生成括号, Longest Valid Parentheses 最长有效括号
Given n pairs of parentheses, write a function to generate all combinations of well-formed pa…
[LeetCode] Merge k Sorted Lists 合并k个有序链表,Merge Two Sorted Lists 混合插入有序链表
Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. &nbs…
[LeetCode] Merge Two Sorted Lists 混合插入有序链表
Merge two sorted linked lists and return it as a new list. The new list should be made by splicing toge…
[LeetCode] Valid Parentheses 验证括号
Given a string containing just the characters '(', ')', '{', '}', '[' and…
[LeetCode] Remove Nth Node From End of List 移除链表倒数第N个节点
Given a linked list, remove the nth node from the end of list and return its head. For example, Given l…
[LeetCode] 4Sum 四数之和,Two Sum,3Sum,3Sum
Given an array S of n integers, are there elements a, b, c, and d in S such that a + b + c + d = target…
[LeetCode] Letter Combinations of a Phone Number 电话号码的字母组合,Path Sum II,Subsets II,Permutations,Permutations II,Combinations,Combination Sum II
Given a digit string, return all possible letter combinations that the number could represent. A mappin…
[LeetCode] 3Sum Closest 最近三数之和, 3Sum 三数之和
Given an array S of n integers, find three integers in S such that the su…