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Cod sursa(job #635116)
#include <cstdio>
FILE *f=fopen("royfloyd.in","r");
FILE *g=fopen("royfloyd.out","w");
int i,j,k,a[101][101],n;
int main()
{
fscanf(f,"%d",&n);
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
fscanf(f,"%d",&a[i][j]);
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][j]=a[i][k]+a[k][j];
for(i=1;i<=n;i++)
{
for(j=1;j<=n;j++)
fprintf(g,"%d ",a[i][j]);
fprintf(g,"\n");
}
fclose(f);
fclose(g);
return 0;
}