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Cod sursa(job #504521)
#include <iostream>
#include <fstream>
#define oo 0x3f3f3f
using namespace std;
int n,a[100][100];
void init()
{
ifstream f("royfloyd.in");
f>>n;
for(int i=1;i<=n;i++)
for(int j=1;j<=n;j++)
f>>a[i][j];
}
void royfloyd()
{
for(int k=1;k<=n;k++)
for(int i=1;i<=n;i++)
if(i!=k)
for(int j=1;j<=n;j++)
if(a[i][j]>a[i][k]+a[k][j])
a[i][j]=a[i][k]+a[k][j];
}
int main()
{
ofstream g("royfloyd.out");
init();
royfloyd();
for(int i=1;i<=n;i++)
{
for(int j=1;j<=n;j++)
g<<a[i][j]<<" ";
g<<"\n";
}
return 0;
}