MidnightDJ的博客

原题目链接： https://leetcode.com/problems/two-sum/description/ 题目描述： 给定一个整数数组，返回两个数字的索引，使它们相加得到一个特定的目标值。 你可以假设每个输入都只有一个解决方案，而您可能不会使用相同的元素两次。 实例： Given nums = [2, 7, 11, 15], target = 9, Because nu

原题目链接： https://leetcode.com/problems/longest-substring-without-repeating-characters/description/ 题目描述： 给定一个字符串，求其最长的没有重复字符的子字符串长度。 实例： 给定 "abcabcbb"， 答案为 "abc", 长度为3。 给定 "bbbbb"，答案为 "b

原题目链接： https://leetcode.com/problems/reverse-integer/description/ 题目描述： 反转一个整数的数位。 实例： x = 123，return 321  x = -123，return -321 注意： 输入假定为32位有符号整数。当反转的整数溢出时，您的函数应返回0。 除了题目给出的限制，还应该

题目链接： https://leetcode.com/problems/container-with-most-water/description/ 题目描述： Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical

题目链接： https://leetcode.com/problems/hamming-distance/description/ 题目描述： The Hamming distance between two integers is the number of positions at which the corresponding bits are different.

题目链接： https://leetcode.com/problems/judge-route-circle/description/ 题目描述： Initially, there is a Robot at position (0, 0). Given a sequence of its moves, judge if this robot makes a circle, wh

题目链接： https://leetcode.com/problems/sqrtx/description/ 题目描述： Implement int sqrt(int x). Compute and return the square root of x. x is guaranteed to be a non-negative integer. 实现函数

题目链接： https://leetcode.com/problems/self-dividing-numbers/description/ 题目描述： A self-dividing number is a number that is divisible by every digit it contains. For example, 128 is a self-div

题目链接：https://leetcode.com/problems/longest-palindromic-substring/ 题目描述：Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000. 给定一个字

题目链接： https://leetcode.com/problems/palindrome-number/description/ 题目描述： Determine whether an integer is a palindrome. Do this without extra space. 判断一个整数是否为回文整数。 题解： 先排除复数和非0的10的倍数。 随后从该整数

题目链接： https://leetcode.com/problems/longest-common-prefix/description/ 题目描述： Write a function to find the longest common prefix string amongst an array of strings. 编写一个函数以查找一个字符串数组中所有字符串的最长公共前

题目链接： https://leetcode.com/problems/3sum/description/ 题目描述： Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array wh

题目链接： https://leetcode.com/problems/find-anagram-mappings/description/ 题目描述： Given two lists Aand B, and B is an anagram of A. B is an anagram of A means B is made by randomizing the or

题目链接： https://leetcode.com/problems/merge-two-binary-trees/description/ 题目描述： Given two binary trees and imagine that when you put one of them to cover the other, some nodes of the two trees

题目链接： https://leetcode.com/problems/number-complement/description/ 题目描述： Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary repres