My Submissions Total Accepted: 9572 Total Submissions: 21748 Difficulty: Medium Given a string s and a string …

题目： Given an index k, return the kth row of the Pascal’s triangle. For example, given&nbs…

题目： Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct …

Regular Expression Matching Implement regular expression matching with support for '.' and'*'. '.' Matches any…

Given an array of integers, every element appears three times except for one. Find that single one. …

题目 Given n points on a 2D plane, find the maximum number of points that lie on the same straight line. 给出二维平面上…

文章作者：Tyan 博客：noahsnail.com  |  CSDN  |  简书 1. 素数 质数（Prime number），又称素数，指在大于1的自然数中，除了1和该数自身…

1、题目描述 Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring …

88. 合并两个有序数组 问题 给定两个有序整数数组 nums1 和 nums2，将 nums2 合并到 nums1 中，使得 num1 成为一个有序数组。 说明: 初始化 nums1 和 nums2 的元素数量分别为 …

Java Algorithm Problems 序言 从开始这个Github已经有将近三四年时间, 很高兴可以帮到有需要的人. 我一直认为, 知识本身是无价的, 因此每逢闲暇, 我就会来维护, 给刷题的朋友们一些我的想法…

题目 Given two strings s and t which consist of only lowercase letters. String t is generated by random shufflin…

  Serialization is the process of converting a data structure or object into a sequence of bits so that i…