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- #include <bits/stdc++.h>
- using namespace std;
- int a[101][101];
- ifstream fin("parc.in");
- ofstream fout("parc.out");
- int main()
- {
- int i,j,n,m,x,y;
- fin>>n>>m;
- for(i=1;i<=m;i++)
- {
- fin>>x>>y;
- a[x][y]=1;
- }
- for(int k=1; k<=n; k++)
- for(i=1; i<=n; i++)
- for(j=1; j<=n ; j++)
- if(a[i][j]==0 )
- a[i][j]=a[i][k]*a[k][j];
- for(i=1;i<=n;i++)
- {
- for(j=1;j<=n;j++)
- fout<<a[i][j]<<" ";
- fout<<"\n";
- }
- return 0;
- }
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