class Solution: def helper(self,l,r,clips)->int: maxL,maxR=0,0 iL,iR=-1,-1 for i,c in enumerate(clips): if c[0]<=l and c[1]>=r: return 1 if c[0]<=l: if c[1]-l>maxL: maxL=c[1]-l iL=i if c[1]>=r: print(r,c[0],c[1],maxR) if r-c[0]>maxR:…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 贪心 日期 题目地址:https://leetcode.com/problems/video-stitching/ 题目描述 You are given a series of video clips from a sporting event that lasted T seconds. These video clips can be overl…

题目如下: You are given a series of video clips from a sporting event that lasted Tseconds.  These video clips can be overlapping with each other and have varied lengths. Each video clip clips[i] is an interval: it starts at time clips[i][0]and ends at t…

//使用java dfs public int videoStitching(int[][] clips, int T) { //bfs Queue<Integer> queue = new LinkedList<>(); Set<Integer> visited = new HashSet<>(); for (int i = 0;i < clips.length; i ++) if (clips[i][0] == 0){ queue.offer(cl…

You are given a series of video clips from a sporting event that lasted T seconds.  These video clips can be overlapping with each other and have varied lengths. Each video clip clips[i] is an interval: it starts at time clips[i][0] and ends at time …

1021. Remove Outermost Parentheses A valid parentheses string is either empty (""), "(" + A + ")", or A + B, where A and B are valid parentheses strings, and +represents string concatenation.  For example, "", "…

请点击页面左上角 -> Fork me on Github 或直接访问本项目Github地址:LeetCode Solution by Swift    说明:题目中含有$符号则为付费题目. 如:[Swift]LeetCode156.二叉树的上下颠倒 $ Binary Tree Upside Down 请下拉滚动条查看最新 Weekly Contest!!! Swift LeetCode 目录 | Catalog 序        号 题名Title 难度     Difficulty  两数之…

测试环境:windows10 开发工具:VS2013 从今天开始准备些FFmpeg的系列教程,今天是第一课我们研究下打开视频文件和视频解码器.演示环境在windows上,在Linux上代码也是一样. windows上可以不编译ffmpeg源码,后面我会分别讲解在linux和在windows上如何编译ffmpeg,直接在FFmpeg官网下载已经编译好的dll和lib文件,下载地址https://ffmpeg.zeranoe.com/builds/ 或者www.ffmpeg.club 里面有32位和…

刷题备忘录,for bug-free leetcode 396. Rotate Function 题意: Given an array of integers A and let n to be its length. Assume Bk to be an array obtained by rotating the array A k positions clock-wise, we define a "rotation function" F on A as follow: F(k…

刷题备忘录,for bug-free 招行面试题--求无序数组最长连续序列的长度,这里连续指的是值连续--间隔为1,并不是数值的位置连续 问题: 给出一个未排序的整数数组,找出最长的连续元素序列的长度. 如: 给出[100, 4, 200, 1, 3, 2], 最长的连续元素序列是[1, 2, 3, 4].返回它的长度:4. 你的算法必须有O(n)的时间复杂度 . 解法: 初始思路 要找连续的元素,第一反应一般是先把数组排序.但悲剧的是题目中明确要求了O(n)的时间复杂度,要做一次排序,是不能达…