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Cod sursa(job #692183)
#include<fstream>
#define inf 105
using namespace std;
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
int n,k,a[inf][inf];
int main()
{
int i,j;
f>>n;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
f>>a[i][j];
for(k=1;k<=n;k++)
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(i!=j && a[i][k]!=inf && a[k][j]!=inf)
if(a[i][j]>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++)
g<<a[i][j]<<' ';
g<<'\n';
}
return 0;
}