제출 #430353

#제출 시각아이디문제언어결과실행 시간메모리
430353MrFrancho슈퍼트리 잇기 (IOI20_supertrees)C++14
21 / 100
280 ms22064 KiB
#include "supertrees.h" #include <bits/stdc++.h> using namespace std; int construct(vector<vector<int>> p) { int N = p.size(); vector<int> group(N,-1); bool vis[N]{}; vector<vector<int>> answer(N); for(int i = 0; i < N; i++) { answer[i].assign(N,0); } for (int i = 0; i < N; i++) { if(!vis[i]) { vis[i] = true; group[i] = i; for(int j = 0; j < N; j++) { if(i != j && p[i][j]) { if(vis[j]) return 0; vis[j] = true; answer[i][j] = answer[j][i] = 1; group[j] = i; } } } } /*for(int i = 0; i < connectedGroups.size(); i++) { cout << i << ":\n"; for(auto x: connectedGroups[i]) cout << x << endl; }*/ for (int i = 0; i < N; i++) { for (int j = 0; j < N; j++) { if((i != j) && ((group[i] == group[j]) != (p[i][j]))) { return 0; } } } build(answer); return 1; }
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