Cod sursa(job #1128813)

Utilizator sebinechitasebi nechita sebinechita Data 27 februarie 2014 18:50:35
Problema Floyd-Warshall/Roy-Floyd Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.84 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("royfloyd.in");
ofstream fout("royfloyd.out");
#define INF 100000
#define MAX 103

int a[MAX][MAX];

int main()
{
    int n, i, j, k;
    fin>>n;
    for(i=1;i<=n;i++)
        for(j=1;j<=n;j++)
        {
            fin>>a[i][j];
            if(!a[i][j])
                a[i][j]=INF;
        }
    for(k=1;k<=n;k++)
    {
        for(i=1;i<=n;i++)
        {
            for(j=1;j<=n;j++)
            {
                if(a[i][k]+a[k][j]<a[i][j] && i!=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]==INF)
                fout<<0<<" ";
            else
                fout<<a[i][j]<<" ";
        }
        fout<<"\n";
    }
}