Given two arrays, write a function to compute their intersection. Example:Given nums1 = [1, 2, 2, 1] , nums2 =…

The simplest solution for this question is probably get all the value out into an array and solve it just like…

本文首发于我的个人博客：尾尾部落 题目描述 请实现两个函数，分别用来序列化和反序列化二叉树 解题思路 对于序列化：使用前序遍历，递归的将二叉树的值转化为字符，并且在每次二叉树的结点不为空时，在转化val所得的字符之后添加…

题目地址：https://leetcode.com/problems/number-of-lines-to-write-string/description/ 大意：给定一个字符串，让他们分行书写，每个字符串长度给定，当…

本文首发于我的个人博客：尾尾部落 题目描述 把只包含质因子2、3和5的数称作丑数（Ugly Number）。例如6、8都是丑数，但14不是，因为它包含质因子7。 习惯上我们把1当做是第一个丑数。求按从小到大的顺序的第N个…

问题描述 Given an array of integers, return indices of the two numbers such that they add up to a specific target.…

Given an integer n, generate a square matrix filled with elements from 1 to n2 in spiral order.…

Problem More LeetCode Discussions A group of two or more people wants to meet and minimize the total travel di…

这是悦乐书的第244次更新，第257篇原创 01 看题和准备 今天介绍的是LeetCode算法题中Easy级别的第111题（顺位题号是496）。你有两个数组（没有重复）nums1和nums2，其中nums1的元素是num…

题目描述 Evaluate the value of an arithmetic expression in Reverse Polish Notation. Valid operators are +, -, *, /…

  Calculate the sum of two integers a and b, but you are not allowed to use the operator + and -. Example…

  Given an integer array, you need to find one continuous subarray that if you only sort this s…