Cod sursa(job #2968057)

Utilizator Daniel7390Popescu Daniel Daniel7390 Data 20 ianuarie 2023 17:36:13
Problema Parcurgere DFS - componente conexe Scor 15
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.91 kb
#include <iostream>
#include <fstream>
#include <vector>

using namespace std;
ifstream fin("dfs.in");
ofstream fout("dfs.out");
vector<vector<int>> adj(10000);
vector<int> vizitat(10000);
int nr_comp = 0;

void dfs(int s) {
    vizitat[s] = 1;
    for (auto& vecin: adj[s])
        if(vizitat[vecin] == 0) {
            dfs(vecin);
        }
            
    

}


int main()
{

    int N, M;
    fin>>N>>M;
    adj.resize(N + 1);
    vizitat.resize(N + 1);
    for(int i = 1; i <= M; i++) {
        int x, y;
        fin>>x>>y;
        adj[x].push_back(y);
    }
    
    for(int i = 1; i <= N; i++)
        vizitat[i] = 0;
        
    for(int i = 1; i <= N; i++) 
        if(vizitat[i] == 0) {
            dfs(i);
            nr_comp++;
        }
        
    
    
    for (int i = 1; i <= N; i++)
        cout<<vizitat[i]<<" ";
    
    fout<<nr_comp;

    return 0;
}