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Cod sursa(job #296247)
#include<fstream.h>
int main()
{
int a[101][101],t[101][101],n,i,j,k;
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
f>>n;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
{f>>a[i][j];
t[i][j]=a[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[i][j]>t[i][k]+t[k][j] || t[i][j]) && j!=i)
t[i][j]=t[i][k]+t[k][j];
for(i=1;i<=n;i++)
{ g<<"\n";
for(j=1;j<=n;j++)
g<<t[i][j]<<" ";
}
return 0;
}