제출 #1105205

#제출 시각아이디문제언어결과실행 시간메모리
1105205jadai007열대 식물원 (Tropical Garden) (IOI11_garden)C++17
0 / 100
215 ms262144 KiB
#include "garden.h" #include "gardenlib.h" #include <bits/stdc++.h> using namespace std; int ans = 0; vector<int> vc[200200]; void dfs(int u, int k, int P){ if(u == P && k == 0) ans++; for(auto v:vc[u]) dfs(v, k - 1, P); } void count_routes(int N, int M, int P, int R[][2], int Q, int G[]){ for(int i = 0; i < M; ++i) vc[R[i][0]].push_back(R[i][1]), vc[R[i][1]].push_back(R[i][0]); for(int i = 0; i < N; ++i) dfs(i, G[0], P); answer(ans); }
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