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- #include <fstream>
- #include <iostream>
- using namespace std;
- ifstream fin("graf_complet.in");
- ofstream fout("graf_complet.out");
- int a[101][101], gr[101];
- int main()
- {
- int n, x, g;
- bool ok=true;
- fin>>g;
- while(g)
- {
- fin>>n;
- for(int i=1; i<n+1; i++)
- for(int j=1; j<n+1; j++)
- {
- fin>>x;
- a[i][j] = x;
- }
- for(int i=1; i<n+1; i++)
- for(int j=1; j<n+1; j++)
- if(a[i][j] == 0 && i!=j)
- ok=false;
- if(ok)fout<<"DA"<<endl;
- else fout<<"NU"<<endl;
- for(int i=1; i<n+1; i++)
- for(int j=1; j<n+1; j++)
- a[i][j]=0;
- g--;
- ok = true;
- }
- }
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