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- #include <fstream>
- using namespace std;
- ifstream f("graf.txt");
- ofstream g("lant.txt");
- int n,i,j,a[50][50],k,nod[100],ok;
- int main()
- {
- f>>n;
- for(i=1;i<=n;i++)
- for(j=1;j<=n;j++)
- f>>a[i][j];
- f>>k;
- for(i=1;i<=k;i++) f>>nod[i];
- ok=1;
- for(i=1;i<k;i++)
- if(a[nod[i]][nod[i+1]]==0) ok=0;
- if(ok) g<<"DA";
- else g<<"NU";
- f.close();g.close();
- return 0;
- }
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