Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- #include <bits/stdc++.h>
- using namespace std;
- vector<int> chosen;
- void recur(vector<vector<int>> &ans, int n, int i, int k){
- if(k == 0){
- ans.push_back(chosen);
- return;
- }
- for(; i <= n - k + 1; ++i){
- chosen.push_back(i);
- recur(ans, n, i + 1, k - 1);
- chosen.pop_back();
- }
- }
- vector<vector<int>> combine(int n, int k){
- vector<vector<int>> ans;
- recur(ans, n, 1, k);
- return ans;
- }
- int main(){
- int n, k;
- scanf("%d%d", &n, &k);
- for(vector<int> &v : combine(n, k)){
- cout << "[ ";
- for(int x : v){
- cout << x << ' ';
- }
- cout << "]\n";
- }
- return 0;
- }
RAW Paste Data
Copied