int[][] edges = {{0, 1}, {1, 2}, {2, 0}}; boolean result = so.hasCycleDirectedGraph(3, edges); System.out.println(result); } } Detect Cycle in Undirected Graph 无向图找环 Given n nodes labeled from 0 to n - 1 and a
LeetCode——1857. 有向图中最大颜色值[Largest Color Value in a Directed Graph][困难]——分析及代码[Java] 一、题目 二、分析及代码 1. 拓扑排序 + 动态规划 (1)思路 (2)代码 (3)结果 三、其他 一、题目 给你一个 有向图 ,它含有 n 个节点和 m 条边。节点编号从 0 到 n - 1 。 给你...
Looked through LeetCode and came across the problem above. It doesn't have Editorial solution and it doesn't seem like a well-known problem from major lists that people use to prepare for interview...
DirectedGraph(intN):n(N),adj(N,list<int>()){};voidaddEdge(intu,intv){//to add an edge u->v to graphadj[u].push_back(v); }boolisCyclic(){//If has back edge, then has cyclevector<bool> visited(n,false); unordered_set<int> recStack;//recursion stackfor(inti=0;i<n;++i...
48 changes: 48 additions & 0 deletions 48 ...-in-a-Directed-Acyclic-Graph/2192.All-Ancestors-of-a-Node-in-a-Directed-Acyclic-Graph.cpp Original file line numberDiff line numberDiff line change @@ -0,0 +1,48 @@ class Solution { public: vector<vector<int>> getAncestors(int n, vect...
1 #include<iostream> 2 #include<cstdio> 3 #include<cstring> 4 #include<limits> 5 #include<vector> 6 using namespace std; 7 const int maxn = 10; 8 struct edge{ 9 int to, cost; 10 edge(int t){ 11 this->to = t; this->cost = 0; 12 } 13 }; 14 void addEdge(vector<edge...