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Cod sursa(job #184024)
#include<stdio.h>
long a[105][105],i,j,m,k;
int main()
{ freopen("royfloyd.in","r",stdin);
freopen("royfloyd.out","w",stdout);
scanf("%ld",&m);
for(i=1;i<=m;i++)
for(j=1;j<=m;j++)
scanf("%ld",&a[i][j]);
for(k=1;k<=m;k++)
for(i=1;i<=m;i++)
for(j=1;j<=m;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];
for(i=1;i<=m;i++)
{ for(j=1;j<=m;j++)
printf("%ld ",a[i][j]);
printf("%s","\n");
}
return 0;
}