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Cod sursa(job #561020)
#include<fstream>
using namespace std;
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
int n,m,C[101][101],i,j,k;
int main()
{f>>n;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)f>>C[i][j];
for(int k=1;k<=n;k++)
for(int i=1;i<=n;i++)
for(int j=1;j<=n;j++)
if(C[i][k] && C[k][j]&& (C[i][k]+C[k][j]<C[i][j] || !C[i][j]) && i!=j) C[i][j]=C[i][k]+C[k][j];
for(i=1;i<=n;i++){
for(j=1;j<=n;j++)g<<C[i][j]<<" ";
g<<'\n';
}
g.close();
return 0;
}