백준 s3 15651 N과 M (3) c++

https://www.acmicpc.net/problem/15651

15651번: N과 M (3)

 

 

코드

/*boj s3 15651 N과 M (3)*/
#include <iostream>

#define MAXN 9
using namespace std;
int N, M;
int answer[MAXN];

void func(int k) {
    if (k == M) {
        for (int i = 0; i < M; i++) {
            cout << answer[i] << " ";
        }
        cout << '\n';
        return;
    }

    for (int i = 1; i <= N; i++) {
        answer[k] = i;
        func(k + 1);
    }
}

int main(void) {
    ios::sync_with_stdio(0);
    cin.tie(0);
    cin >> N >> M;

    func(0);
}