Can you solve this real interview question? Course Schedule IV - There are a total of numCourses courses you have to take, labeled from 0 to numCourses - 1. You are given an array prerequisites where prerequisites[i] = [ai, bi] indicates that you must ta
[LeetCode] 1462. Course Schedule IV There are a total ofnumCoursescourses you have to take, labeled from0tonumCourses - 1. You are given an arrayprerequisiteswhereprerequisites[i] = [ai, bi]indicates that youmusttake courseaifirst if you want to take coursebi. For example, the pair[0,...
题目地址:https://leetcode-cn.com/problems/course-schedule-iv/ 题目描述 你总共需要上n门课,课程编号依次为0到n-1。 有的课会有直接的先修课程,比如如果想上课程0,你必须先上课程1,那么会以[1,0]数对的形式给出先修课程数对。 给你课程总数n和一个直接先修课程数对列表prerequisite和一个查询对列表queri...
a)所有 in-degree 为 0 的顶点都是源,并会被存入一个队列 4.排序。a)对于每个源,执行以下操作:i)将其加入到排序的列表;ii)根据图获取其所有子节点;iii)将每个子节点的 in-degree 减少 1;iv)如果一个子节点的 in-degree 变为 0,将其加入到源队列。b)重复 (a),直到源队列为空。 如何识别拓扑排序模...
Leetcode 207 Course Schedule (I, II) Leetcode 444 Sequence Reconstruction Leetcode 269 Alien Dictionary Leetcode 310 Minimum Height Trees Leetcode 366 Find Leaves of Binary Tree 深度优先搜索(DFS):面试中最常考的(分类的稍微有点粗糙了,没有细分出回溯/分治来,准备找个时间给每个DFS的题标记下是哪种...
1462 Course Schedule IV 48.9% Medium 1463 Cherry Pickup II Go 70.2% Hard 1464 Maximum Product of Two Elements in an Array Go 79.2% Easy 1465 Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts Go 40.8% Medium 1466 Reorder Routes to Make All Paths Lead to the City...
1462 Course Schedule IV Medium Solution 1463 Cherry Pickup II Hard Solution 1464 Maximum Product of Two Elements in an Array Easy Solution 1467 Probability of a Two Boxes Having The Same Number of Distinct Balls Hard Solution 1469 Find All The Lonely Nodes Easy Solution 1470 Shuffle the Array ...
630 Course Schedule III 20.50% Medium 629 K Inverse Pairs Array 23.90% Hard 628 Maximum Product of Three Numbers 45.40% Easy 627 Swap Salary 67.40% Easy 626 Exchange Seats 49.60% Medium 625 Minimum Factorization $ 29.50% Medium 624 Maximum Distance in Arrays $ 32.70% Easy 623 Add One Row...
iv. Assign the node to -1, currently checking. v. If the node is not assigned, DFS the next node, if any of the step is false, return false. vi. After check its children, and no false, then there's no cycle, return true. ...
事情是这样的. 下面这个就是我在GitHub上面自动生成的LintCode表格. 当时先做的是LintCode, 大约有150来道。 现在转手来做LeetCode,作为复习和...