Cod sursa(job #2662485)
Utilizator | Cuibus Dorin Iosif Dorin07 | Data | 24 octombrie 2020 10:35:00 |
---|---|---|---|
Problema | Parcurgere DFS - componente conexe | Scor | 0 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.55 kb |
#include <fstream>
#define NMAX 1001
using namespace std;
ifstream fin("dfs.in");
ofstream fout("dfs.out");
int n, m, x, y, ans;
bool a[NMAX][NMAX], visited[NMAX];
void citire(){
fin>>n>>m;
for(int i = 1; i <= m; ++i){
fin>>x>>y;
a[x][y] = a[y][x] = 1;
}
}
void dfs(int node){
visited[node] = 1;
++ans;
for(int i = 1; i <= n; ++i){
if(a[node][i] && !visited[i]){
dfs(i);
}
}
}
int main(){
citire();
dfs(1);
fout<<ans<<'\n';
return 0;
}