Submission #330586

#TimeUsernameProblemLanguageResultExecution timeMemory
330586MilosMilutinovicConnecting Supertrees (IOI20_supertrees)C++14
0 / 100
1 ms364 KiB
#include "supertrees.h" #include <bits/stdc++.h> using namespace std; #define pb push_back int construct(vector<vector<int>> a){ int n=(int)a[0].size(); for(int i=0;i<n;i++)for(int j=0;j<n;j++)if(a[i][j]==3)return 0; vector<int> E[n]; for(int i=0;i<n;i++){ for(int j=0;j<n;j++){ if(a[i][j]==1)E[i].pb(j),E[j].pb(i); } } vector<vector<int>> ans(n,vector<int>(n,0)); bool was[n]; for(int i=0;i<n;i++)was[i]=0; for(int i=0;i<n;i++){ for(int c:E[i])if(i!=c&&!was[c])was[c]=1,ans[i][c]=1; } build(ans); return 1; } /*int main(){ int n; scanf("%i",&n); vector<vector<int>> a(n,vector<int>(n)); for(int i=0;i<n;i++)for(int j=0;j<n;j++)scanf("%i",&a[i][j]); int ans=construct(a); return 0; }*/
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