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Cod sursa(job #394409)
#include<iostream.h>
#include<fstream.h>
int main()
{
int n,a[101][101],i,j,k;
ifstream fin("royfloyd.in");
ofstream fout("royfloyd.out");
fin>>n;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++){
fin>>a[i][j];
if(a[i][j]==0)a[i][j]=1001;
}
for(i=1;i<=n;i++)a[i][i]=0;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
for(k=1;k<=n;k++)if(a[j][k]>a[j][i]+a[i][k])a[j][k]=a[j][i]+a[i][k];
for(i=1;i<=n;i++)
{
for(j=1;j<=n;j++)if(a[i][j]==1001)fout<<"0 ";
else fout<<a[i][j]<<' ';
fout<<'\n';
}
return 0;
}