제출 #1286463

#제출 시각아이디문제언어결과실행 시간메모리
1286463eri16이주 (IOI25_migrations)C++20
0 / 100
31 ms1000 KiB
#include <bits/stdc++.h> using namespace std; vector <int> v[20001]; #include <bits/stdc++.h> using namespace std; int bfs(int node, int mx){ int n=mx; vector<int> dist(n, -1); queue<int> q; dist[node]=0; q.push(node); int f=node; while (!q.empty()) { int t=q.front(); q.pop(); for (int i=0; i<v[t].size(); i++) { int to=v[t][i]; if (dist[to]==-1) { dist[to]=dist[t]+1; q.push(to); if (dist[to]>dist[f]) f=to; }}} return f; } int send_message(int N, int i, int Pi){ if (i!=N-1){ v[i].push_back(Pi); v[Pi].push_back(i); return 0; } else{ int T=bfs(0,N); return (T); } } std::pair<int,int> longest_path(std::vector<int> S){ return {0,S[S.size()-1]}; }
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