제출 #447434

#제출 시각아이디문제언어결과실행 시간메모리
447434Nodir_Bobiev슈퍼트리 잇기 (IOI20_supertrees)C++17
21 / 100
368 ms24120 KiB
#include "supertrees.h" #include <bits/stdc++.h> using namespace std ; int construct(std::vector<std::vector<int>> p) { int n = p.size(); vector <vector <int>> ans; for(int i = 0; i < n; i ++){ vector <int> row; row.resize(n); ans.push_back(row); } map <int, long> us, comp; for(int i = 0; i < n; i ++){ if( us[i] ) continue; comp[i] = i; for(int j = 0; j < n; j ++){ if( p[i][j] ){ if( i == j ) continue; if( us[j] ) return 0; us[j] = 1, comp[j] = i; ans[i][j] = ans[j][i] = 1; } } } for(int i = 0; i < n; i ++){ for(int j = 0; j < n; j ++){ if( ( comp[i] == comp[j] ) != p[i][j] ) return 0; } } build(ans); return 1; }
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