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Cod sursa(job #836969)
#include <fstream>
using namespace std;
ifstream fin("royfloyd.in");
ofstream fout("royfloyd.out");
int i,j,n,k,m[101][101];
int main()
{fin>>n;
for(i=1;i<=n;++i)
for(j=1;j<=n;++j)
fin>>m[i][j];
for(k=1;k<=n;++k)
for(i=1;i<=n;++i)
for(j=1;j<=n;++j)
if((m[i][j]>m[i][k]+m[k][j]||!m[i][j])&&(i!=j)&&(m[i][k])&&(m[k][j]))
{m[i][j]=m[i][k]+m[k][j];
}
for(i=1;i<=n;++i)
{
for(j=1;j<=n;++j)
fout<<m[i][j]<<" ";
fout<<'\n';
}
return 0;
}