제출 #318157

#제출 시각아이디문제언어결과실행 시간메모리
318157NintsiChkhaidze슈퍼트리 잇기 (IOI20_supertrees)C++14
0 / 100
1 ms364 KiB
#include "supertrees.h" #include <iostream> #include <vector> #define pb push_back using namespace std; int construct(vector<vector<int>> p) { int n = p.size(),r=0; vector<vector<int>> answer; bool q=1; for(int i=0;i<n;i++){ for (int j=0;j<n;j++){ if (p[i][j] == 1) r++; if (p[i][i] != 1) q=0; } } if (!q) return 0; if (r == n*n) { for (int i=0;i<n;i++){ vector<int> row; row.clear(); for (int j=0;j<n;j++){ if (i!=j) row.pb(1); else row.pb(0); } answer.push_back(row); } build(answer); return 1; } for (int i = 0; i < n; i++) { vector<int> row; row.resize(n); answer.push_back(row); } build(answer); return 1; }
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