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Cod sursa(job #737643)
#include<fstream>
#define oo 10000000
using namespace std;
ifstream fin("royfloyd.in");
ofstream fout("royfloyd.out");
int i, j ,n, v[103][103],m;
void read()
{
fin>> n;
for(i = 1; i <= n ;i++)
{
for(j = 1; j <= n; ++j)
{
fin >>v[i][j];
if(!v[i][j])
v[i][j]= oo;
}
}
for(int k = 1; k <= n ;k++)
{
for(i = 1 ; i <= n ;i++)
{
for(j = 1; j <= n ;j++)
{
if(v[i][j] > v[i][k] + v[k][j] )
v[i][j] = v[i][k] + v[k][j];
}
}
}
for(i = 1; i <= n; i++)
{
for(j = 1; j <= n ;j++)
if(v[i][j] == oo)
fout <<0 <<" " ;
else
fout <<v[i][j] <<" " ;
fout << '\n' ;
}
}
int main()
{
read();
fin.close();
return 0;
}