lichao_normal

摘要： Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring. For "(()", the lo 阅读全文

摘要： Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers. If such arrangement is not possib 阅读全文

摘要： You are given a string, s, and a list of words, words, that are all of the same length. Find all starting indices of substring(s) in s that is a conca 阅读全文

摘要： 1 int divide(int dividend, int divisor) { 2 if(divisor==0)return INT_MAX; 3 if(dividend==0)return 0; 4 long long res=0; 5 int flag=1; 6 long long d1=d 阅读全文

摘要： Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space fo 阅读全文

摘要： 问题描述： Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three int 阅读全文