백준 소스코드 [C++] 15649 N과 M 6

https://www.acmicpc.net/problem/15655

15655번: N과 M (6)

백준 소스코드 [C++] 15649 N과 M 6

#include <iostream>
#include <utility>
#include <vector>
#include <algorithm>
#include <deque>
using namespace std;
int arr[8];
void print(vector <int>& v) {
	for (int i = 0;i < v.size();i++)
		cout << v[i] << " ";
	cout << '\n';
}

void dfs(int in,int out, vector <int>& v) {
	if (v.size() == out) {
		print(v);
		return;
	}
	else {
		for (int i = 0;i < in;i++) {
			if(v.empty()!=true && v.back()>=arr[i]) continue;
			v.push_back(arr[i]);
			dfs(in, out, v);
			v.pop_back();
		}
	}
}

int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	int n, m;
	cin >> n >> m;
	vector <int> v;
	for(int i=0;i<n;i++) cin >> arr[i];
	sort(arr, arr + n);
	dfs(n,m, v);
	return 0;
}