제출 #823064

#제출 시각아이디문제언어결과실행 시간메모리
823064Sohsoh84슈퍼트리 잇기 (IOI20_supertrees)C++17
11 / 100
165 ms22020 KiB
#include "supertrees.h" #include <bits/stdc++.h> using namespace std; int construct(vector<vector<int>> p) { int n = p.size(); vector<vector<int>> answer; for (int i = 0; i < n; i++) { vector<int> row; row.resize(n, 0); answer.push_back(row); } for (int i = 1; i < n; i++) { int lst = i; for (int j = 0; j < i; j++) { if (p[i][j]) { if (lst == i) lst = j; else if (!p[lst][j]) return 0; } } if (lst < i) answer[i][lst] = answer[lst][i] = 1; } build(answer); return 1; }
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