Minimum Subset Sum Difference (hard) 15. Pattern: Topological Sort (Graph),拓扑排序类型 拓扑排序模式用来寻找一种线性的顺序,这些元素之间具有依懒性。比如,如果事件B依赖于事件A,那A在拓扑排序顺序中排在B的前面。 这种模式定义了一种简单方式来理解拓扑排序这种技术。 这种模式是这样奏效的: 初始化a) 借助于Hash
This question is similar to those "university career fair", "schedule meeting" type of question, the difference is here each interval is weighted. when use dp for question related with ordering, we sort first. sort by startTime, endTime, profit Using dynamic programming, where dp[j] = the...
链接:https://www.zhihu.com/question/36738189/answer/908664455 开篇的话:LeetCode题目太多,且其中的基本知识点其实是变化不大的,因此全部刷完肯定不是最好最有效的方式。短时间刷不完也记不住。所以要刷经典题,要刷一题掌握一个类型,遇到新题需要和刷过的题总结归类到一起,才能以不变应万变,真正提高。 因...
Minimum Subset Sum Difference (hard) 15. Pattern: Topological Sort (Graph),拓扑排序模式 拓扑排序模式用来寻找一种线性的顺序,这些元素之间具有某种依懒性。比如,如果事件B依赖于事件A,那A在拓扑排序顺序中应该排在B的前面。 这种模式定义了一种简单方式来理解拓扑排序这种技术。 这种模式是按下面的方式起作用的...
ArrayMathDynamic ProgrammingGraphTopological SortMemoizationMatrixGame Theory Companies Hint 1 Try working backward: consider all trivial states you know to be winning or losing, and work backward to determine which other states can be labeled as winning or losing. Similar Questions Escape The Ghosts...
Question : Sort the student accordingtofollowingrulesfirstsort accordingtomarks,stundentwithgreater marks should comefirst(decendingorder)ifmarks are samethensort accordingtorollNumberinacendingorderifeven marks are samethensort accordingtoname,lexographicallyifeven name are samethensort accordingtoenrollment...
That is a definite interview question on any one and every one of these patterns! 11. Union Find (Disjoint Set) Explanation Union Find, also known as Disjoint Set Union (DSU), is a data structure that keeps track of elements partitioned into a number of disjoint (non-overlapping) sets. ...
LeetCode (LC), being the largest repository of coding problems, contains more than 2k+ questions. Each question on LC can be tagged with one or more topics. These topics are either data structures like Array, HashTable, Tree, etc., or algorithmic techniques like Greedy, Divide and Conquer,...
一. 树 1）求二叉树的高度（Maximum Depth of Binary Tree）// LeetCode, Maximum Depth of Binary ...
leetcode 324. Wiggle Sort II 题意: View Code 解法:先找到中位数,用quickselect找第k大的数 k = (len + 1) / 2;leetcode 215的算法。 再用leetcode75的算法 + (1 + 2 * i) % (n | 1),后者的作用是将前半部分放到奇数位,后半部分放到偶数位。