Cod sursa(job #2649130)

Utilizator FrostfireMagirescu Tudor Frostfire Data 13 septembrie 2020 09:54:25
Problema Floyd-Warshall/Roy-Floyd Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.89 kb
#include <iostream>
#include <fstream>
#define NMAX 100
#define inf 100000000

using namespace std;

ifstream f("royfloyd.in");
ofstream g("royfloyd.out");

int n, dp[NMAX+10][NMAX+10];

int main()
{
    f >> n;
    for(int i=1; i<=n; i++)
        for(int j=1; j<=n; j++)
            {   int x;
                f >> x;
                if(!x) dp[i][j] = inf;
                else dp[i][j] = x;
            }
    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(j != k && j != i)
                        dp[i][j] = min(dp[i][j], dp[i][k] + dp[k][j]);
    for(int i=1; i<=n; i++)
        {   for(int j=1; j<=n; j++)
                {   if(dp[i][j] == inf) g << 0 << ' ';
                    else g << dp[i][j] << ' ';
                }
            g << '\n';
        }
    return 0;
}