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Cod sursa(job #145555)
#include<fstream.h>
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
int a[200][200],i,n,j,k;
void creare();
void royf();
void afisare();
int main()
{ creare();
royf();
afisare();
return 0;
}
void creare()
{ f>>n;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
f>>a[i][j];
}
void royf()
{ int i, j, k;
for (k = 1; k <= n; k++)
for (i = 1; i <= n; i++)
for (j = 1; j <= n; j++)
if (a[i][k] && a[k][j] && (a[i][j] > a[i][k] + a[k][j] || !a[i][j]) && i != j) a[i][j] = a[i][k] + a[k][j];
}
void afisare()
{ for(i=1;i<=n;i++)
{ for(j=1;j<=n;j++)
g<<a[i][j];g<<"\n"; }
}