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Cod sursa(job #162142)
#include<fstream.h>
int n,a[101][101];
int main()
{int i,j,k;
ifstream f("royfloyd.in");
f>>n;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
f>>a[i][j];
f.close();
for(k=1;k<=n;k++)
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(i!=j)
if((a[i][k])&&(a[k][j]))
{if(!a[i][j])a[i][j]=a[i][k]+a[k][j];
else if((a[i][k]+a[k][j])<a[i][j])a[i][j]=a[i][k]+a[k][j];
}
ofstream g("royfloyd.out");
for(i=1;i<=n;i++)
{for(j=1;j<=n;j++)
g<<a[i][j]<<" ";
g<<'\n';}
g.close();
return 0;
}