xingzheouc的专栏

Add Two Numbers Total Accepted: 52318 Total Submissions: 235849My Submissions/** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNo

Integer to Roman Total Accepted: 41179 Total Submissions: 120292My SubmissionsQuestion Solution Given an integer, convert it to a roman numeral.Input is guaranteed to be within

Roman to Integer Total Accepted: 50788 Total Submissions: 147615My SubmissionsQuestion Solution Given a roman numeral, convert it to an integer.Input is guaranteed to be within

4Sum Total Accepted: 45840 Total Submissions: 210663My SubmissionsQuestion Solution Given an array S of n integers, are there elements a, b, c, and d in S such that a + b + c +

3Sum Closest Total Accepted: 49672 Total Submissions: 184745My SubmissionsQuestion Solution Given an array S of n integers, find three integers in S such that the sum is closest

class Solution {public: ListNode* removeNthFromEnd(ListNode* head, int n) { if( n <= 0) return NULL; ListNode *First = head, *Second = head; int i = 0; for( ; i < n; i ++) {

Generate ParenthesesMy SubmissionsQuestion Solution Total Accepted: 57885 Total Submissions: 176392 Difficulty: MediumGiven n pairs of parentheses, write a function to ge

Swap Nodes in PairsMy SubmissionsQuestion Solution Total Accepted: 62382 Total Submissions: 192595 Difficulty: MediumGiven a linked list, swap every two adjacent nodes and re

Merge k Sorted ListsMy SubmissionsQuestion Solution Total Accepted: 55947 Total Submissions: 265405 Difficulty: HardMerge k sorted linked lists and return it as one sorted li

Reverse Nodes in k-GroupMy SubmissionsQuestion Solution Total Accepted: 41856 Total Submissions: 165382 Difficulty: HardGiven a linked list, reverse the nodes of a linked

3Sum Total Accepted: 72528 Total Submissions: 429905My SubmissionsQuestion Solution Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Fin

Container With Most Water Total Accepted: 50362 Total Submissions: 158080My SubmissionsQuestion Solution Given n non-negative integers a1, a2, ..., an, where each represents a

Given an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return indices of the two numbers such that they add up to the target, whe

Median of Two Sorted Arrays Total Accepted: 44236 Total Submissions: 247850There are two sorted arrays A and B of size m and n respectively. Find the median of the two sorted arrays. The overa

Longest Palindromic SubstringTotal Accepted: 65785 Total Submissions: 318428 My Submissions Given a string S, find the longest palindromic substring in S. You may assume that the maximum

Palindrome Number Total Accepted: 77169 Total Submissions: 270157My SubmissionsQuestion Solution Determine whether an integer is a palindrome. Do this without extra space.click

String to Integer (atoi) Total Accepted: 63122 Total Submissions: 494040My SubmissionsQuestion Solution Implement atoi to convert a string to an integer.Hint: Carefully conside

Reverse Integer Total Accepted: 92759 Total Submissions: 391368My SubmissionsQuestion Solution Reverse digits of an integer.Example1: x = 123, return 321Example2: x = -123, r

Letter Combinations of a Phone Number Total Accepted: 51210 Total Submissions: 200367My SubmissionsQuestion Solution Given a digit string, return all possible letter combinations

Regular Expression Matching Total Accepted: 53358 Total Submissions: 258833My SubmissionsQuestion Solution Implement regular expression matching with support for '.' and '*'.'.

class Solution {public: bool isValid(string s) { int len = s.length(); if( len & 1 || !len) return false; stack sta; for(int i = 0; i < len; i ++) { if( s[i] == '(' || s[i] == '{'

一段c++输入格式解析代码思路建立两个二维数组存隐射关系，用一个递归函数判断有无锁，懒得写了int main(int argv,char**argc){int num;string input,item, temp;vector wait_id;map haveId_thrId;cin >> num;bool flag = false;i