Cod sursa(job #2576571)
Utilizator | Iliescu Alexia iliescualexia | Data | 6 martie 2020 20:35:24 |
---|---|---|---|
Problema | Floyd-Warshall/Roy-Floyd | Scor | 100 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 1.09 kb |
#include <iostream>
#include <fstream>
#define pinf 1000000007
using namespace std;
ifstream fin("royfloyd.in");
ofstream fout("royfloyd.out");
int a[110][110],n,i,j,k;
int main()
{
fin>>n;
for(i=1;i<=n;i++)
{
for(j=1;j<=n;j++)
{
fin>>a[i][j];
if(i!=j&&a[i][j]==0)
{
a[i][j]=pinf;
}
}
}
for(k=1;k<=n;k++)
{
for(i=1;i<=n;i++)
{
for(j=1;j<=n;j++)
{
if(a[i][k]!=pinf&&a[k][j]!=pinf&&i!=j&&j!=k&&i!=k)
{
if(a[i][j]>a[i][k]+a[k][j])
{
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]!=pinf)
{
fout<<a[i][j]<<" ";
}
else
{
fout<<0<<" ";
}
}
fout<<'\n';
}
return 0;
}