제출 #456138

#제출 시각아이디문제언어결과실행 시간메모리
456138BT21tata슈퍼트리 잇기 (IOI20_supertrees)C++17
21 / 100
396 ms22028 KiB
#include "supertrees.h" #include<bits/stdc++.h> using namespace std; bool used[1005]; int construct(vector<vector<int>> p) { int n = p.size(), mx=0; bool f=1; vector<vector<int>> ans; ans.resize(n); for (int i = 0; i < n; i++) { ans[i].resize(n); for(int j=0; j<n; j++) mx=max(mx, p[i][j]); } vector<int>v; for(int i=0; i<n; i++) { if(!used[i]) { v.clear(); for(int j=0; j<n; j++) if(p[i][j]) { if(p[i]==p[j]) v.push_back(j); else f=0; } for(int j=0; j<(int)v.size()-1; j++) ans[v[j]][v[j+1]]=ans[v[j+1]][v[j]]=1; if(mx==2) ans[v[0]][v[v.size()-1]]=ans[v[v.size()-1]][v[0]]=1; } } if(!f) return 0; build(ans); return 1; }
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