제출 #963253

#제출 시각아이디문제언어결과실행 시간메모리
963253SuPythony악어의 지하 도시 (IOI11_crocodile)C++17
0 / 100
2 ms4440 KiB
#include "crocodile.h" #include <bits/stdc++.h> using namespace std; vector<vector<pair<int,int>>> al(1000, vector<pair<int,int>>()); vector<int> is_exit(1000, 0); vector<int> dp(1000,0); vector<int> vis(1000,0); vector<int> can_reach(1000, 0); void dfs(int u, int p) { if (is_exit[u]) { can_reach[p]=1; return; } vis[u]=1; int mn=INT_MAX; int mn2=INT_MAX; for (auto v: al[u]) { if (vis[v.first]) continue; dfs(v.first,u); if (can_reach[v.first]) { can_reach[u]=1; if (dp[v.first]+v.second<=mn) { mn2=mn; mn=min(mn,dp[v.first]+v.second); } else { mn2=min(mn2,dp[v.first]+v.second); } } } dp[u]=mn2; } int travel_plan(int N, int M, int R[][2], int L[], int K, int P[]) { for (int i=0; i<M; i++) { int u=R[i][0], v=R[i][1]; al[u].push_back({v, L[i]}); al[v].push_back({u, L[i]}); } for (int i=0; i<K; i++) { is_exit[P[i]]=1; } if (is_exit[0]) return 0; dfs(0,-1); return dp[0]; }
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