题目 Given an array of size n, find the majority element. The majority element is the element that appears more …

  You want to build a house on an empty land which reaches all buildings in the shortest amount…

题目： Given two integers n and k, return all possible combinations of k numbers out of …

题目： Given s1, s2, s3, find whether s3 is formed by the interleaving of s1 a…

题目： Given a linked list and a value x, partition it such that all nodes less than x come before…

题目描述 Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place. click to sh…

1. 题目 Given an array S of n integers, find three integers in S such that the sum is closest to a given number,…

Solution1 If we think about it, there may be three conditions for the largest diameter of a binary tree. The l…

Spiral Matrix Medium Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix i…

本文首发于我的个人博客：尾尾部落 题目描述 小明很喜欢数学,有一天他在做数学作业时,要求计算出9~16的和,他马上就写出了正确答案是100。但是他并不满足于此,他在想究竟有多少种连续的正数序列的和为100(至少包括两个数…

1、题目描述 Given two words word1 and word2, find the minimum number of operations required to convert word1 to wor…

int maxSize = -1; string ss = "hello,world."; if(maxSize < ss.size()) cout << "ss.size()" << en…