제출 #1140243

#제출 시각아이디문제언어결과실행 시간메모리
1140243mnbvcxz123Ronald (COCI17_ronald)C++20
120 / 120
18 ms328 KiB
#include<bits/stdc++.h> using namespace std; int main(){ ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0); int n, m; cin>>n>>m; vector<bitset<1001>>E(n+1); while(m--){ int u, v; cin>>u>>v; E[u][v]=E[v][u]=1; } E[1][1]=1; for(int i=1;i<=n;i++) for(int j=1;j<i;j++) if((E[1][i]+E[1][j])%2==E[i][j]) return cout<<"NE", 0; cout<<"DA"; }
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