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Cod sursa(job #623597)
#include<fstream>
#include<algorithm>
#define inf 0x3f3f3f
using namespace std;
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
int n,i,j,k,a[101][101];
int main()
{
f>>n;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
{
f>>a[i][j];
if(a[i][j]==0 && i!=j)
a[i][j]=inf;
}
for(k=1;k<=n;k++)
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
a[i][j]=min(a[i][j],a[i][k]+a[k][j]);
for(i=1;i<=n;i++)
{
for(j=1;j<=n;j++)
if(a[i][j]!=inf)
g<<a[i][j]<<" ";
else
g<<0<<" ";
g<<"\n";
}
return 0;
}