Cod sursa(job #1837740)

Utilizator SolcanMihaiSolcan Mihai Andrei SolcanMihai Data 30 decembrie 2016 13:20:06
Problema Floyd-Warshall/Roy-Floyd Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 1.31 kb
#include <cstdio>

using namespace std;

const int inf = (1 << 29) / 2;

int n;
int mat[105][105];

void citire()
{
    scanf("%d", &n);

    for(int i = 0; i < n; i++)
    {
        for(int j = 0; j < n; j++)
        {
            scanf("%d", &mat[i][j]);

            if(mat[i][j] == 0)
            {
                mat[i][j] = inf;
            }
        }
    }
}

void solve()
{
    for(int k = 0; k < n; k++)
    {
        for(int i = 0; i < n; i++)
        {
            for(int j = 0; j < n; j++)
            {
                if(k != i && k != j)
                {
                    if(mat[i][j] > mat[i][k] + mat[k][j])
                    {
                        mat[i][j] = mat[i][k] + mat[k][j];
                    }
                }
            }
        }
    }

    for(int i = 0; i < n; i++)
    {
        for(int j = 0; j < n; j++)
        {
            if(mat[i][j] == inf)
            {
                mat[i][j] = 0;
            }

            if(i == j)
            {
                mat[i][j] = 0;
            }

            printf("%d ", mat[i][j]);
        }
        printf("\n");
    }
}

int main()
{
    freopen("royfloyd.in", "r", stdin);
    freopen("royfloyd.out", "w", stdout);

    citire();
    solve();

    return 0;
}