제출 #553997

#제출 시각아이디문제언어결과실행 시간메모리
553997a_aguiloTraffic (IOI10_traffic)C++14
0 / 100
1 ms312 KiB
#include "traffic.h" #include<bits/stdc++.h> using namespace std; int dfs (int padre, int nodo, vector<vector<int>>& listaAdy, int pop[], vector<vector<int>>& dp){ if(dp[nodo][padre] != -1) return dp[nodo][padre]; dp[nodo][padre] = pop[nodo]; for(int conexion: listaAdy[nodo]){ if(conexion != padre) dp[nodo][padre]+= dfs(nodo, conexion, listaAdy, pop, dp); } return dp[nodo][padre]; } int LocateCentre(int N, int pp[], int S[], int D[]) { vector<vector<int>> listaAdy(N); for(int i= 1; i < N; ++i){ int a = S[i]; int b = D[i]; listaAdy[a].push_back(b); } vector<vector<int>> dp(N, vector<int> (N, -1)); int act = -1e9; for(int conex: listaAdy[0]){ act = max(act, dfs(0, conex, listaAdy, pp, dp)); } pair<int, int> ans = make_pair(act, 0); for(int ciudad = 1; ciudad < N; ++ciudad){ int act = -1e9; for(int conex: listaAdy[ciudad]){ act = max(act, dfs(ciudad, conex, listaAdy, pp, dp)); } ans = min(ans, make_pair(act, ciudad)); } return ans.second; }
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