[백준][C++] 15652 N과 M (4)

https://www.acmicpc.net/problem/15652

15652번: N과 M (4)

 

 

[백준][C++] 15652 N과 M (4)

#include <iostream>
#include <vector>
using namespace std;

void dfs(int b, int N, int M, vector<int> out) {
	if (out.size() == M) {
		for (int i : out) {
			cout << i << ' ';
		}
		cout << '\n';
		return;
	}

	for (int i = b; i <= N; i++) {
		out.push_back(i);
		dfs(i, N, M, out);
		out.pop_back();
	}
}

int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);

	int N, M;
	cin >> N >> M;

	vector<int> out;
	vector<int> visit(N, 0);
	dfs(1, N, M, out);

	return 0;
}