Cod sursa(job #2871261)

Utilizator CozminelDanielLupu Cosmin-Daniel CozminelDaniel Data 14 martie 2022 02:20:57
Problema Floyd-Warshall/Roy-Floyd Scor 50
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.93 kb
#include <fstream>
#include <vector>

using namespace std;

int a[105][105];
int d[105][105];
int n;

void read() {
    ifstream fin("royfloyd.in");
    fin >> n;
    for(int i = 0; i < n; ++i)
        for(int j = 0; j < n; ++j)
            fin >> a[i][j];
    fin.close();
}

void init() {
    for(int i = 0; i < n; ++i)
        for(int j = 0; j < n; ++j)
            d[i][j] = a[i][j];
}

void royFloyd() {
    for(int k = 0; k < n; ++k)
        for(int i = 0; i < n; ++i)
            for(int j = 0; j < n; ++j)
                if(d[i][j] > d[i][k] + d[k][j])
                    d[i][j] = d[i][k] + d[k][j];
}

void write() {
    ofstream fout("royfloyd.out");
    for(int i = 0; i < n; ++i) {
        for(int j = 0; j < n; ++j)
            fout << d[i][j] << " ";
        fout << endl;
    }
    fout.close();
}

int main() {
    read();
    init();
    royFloyd();
    write();
    return 0;
}