Cod sursa(job #2717823)

Utilizator DavidTosaDavid Tosa DavidTosa Data 7 martie 2021 23:17:50
Problema Floyd-Warshall/Roy-Floyd Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.96 kb
#include <iostream>
#include <fstream>

using namespace std;
ifstream fin("royfloyd.in");
ofstream fout("royfloyd.out");

int n,m,i,j,x,a[110][110];
const int pinf=100010;

void RF(int a[110][110], int n)
{
    int i,j,k;
    for(k=1;k<=n;k++)
    {
        for(i=1;i<=n;i++)
        {
            for(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()
{
    fin>>n;
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=n;j++)
        {
            fin>>x;
            if(i!=j && x==0)
                a[i][j]=pinf;
            else
                a[i][j]=x;
        }
    }

    RF(a,n);
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=n;j++)
        {
            if(a[i][j]==pinf)
                fout<<0<<" ";
            else
                fout<<a[i][j]<<" ";
        }
        fout<<'\n';
    }
    return 0;
}