Cod sursa(job #2119068)

Utilizator SolcanMihaiSolcan Mihai Andrei SolcanMihai Data 31 ianuarie 2018 16:53:45
Problema Floyd-Warshall/Roy-Floyd Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 1.21 kb
#include <cstdio>

using namespace std;

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]);
        }
    }
}

void solve(){
    for(int k = 0; k < n; k++){
        for(int i = 0; i < n; i++){
            if(i == k){
                continue;
            }
            for(int j = 0; j < n; j++){
                if(j == k){
                    continue;
                }

                if(i == j){
                    continue;
                }

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

                int d = mat[i][k] + mat[k][j];

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

void afisare(){
    for(int i = 0; i < n; i++){
        for(int j = 0; j < n; j++) {
            printf("%d ", mat[i][j]);
        }
        printf("\n");
    }
}

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

    citire();
    solve();
    afisare();

    return 0;
}