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Cod sursa(job #949376)
#include<fstream>
#define DMAX 101
using namespace std;
ifstream fin("royfloyd.in");
ofstream fout("royfloyd.out");
int i,j,k,n,t[DMAX][DMAX];
int main()
{
fin>>n;
for(i=1;i<=n;++i)
for(j=1;j<=n;++j)
fin>>t[i][j];
for(k=1;k<=n;++k)
for(i=1;i<=n;++i)
for(j=1;j<=n;++j)
if(t[i][k] && t[k][j] && i!=j && (t[i][j]>t[i][k]+t[k][j] || !t[i][j]))
t[i][j]=t[i][k]+t[k][j];
for(i=1;i<=n;++i)
{
for(j=1;j<=n;++j)
fout<<t[i][j]<<" ";
fout<<'\n';
}
return 0;
}