func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int t = 1;     while (t--) {       int n, k;       cin >> n >> k;       vector<int> v(n);       int itr = 1;       for (int& x : v) {         cin >> x;       }       set<int> bag{0}, tmp;       map<int, vector<int>> pep;       for (int i = 0; i < n && bag.size() <= k; i++) {         tmp = bag;         for (auto x : tmp) {           if (bag.find(x + v[i]) == bag.end()) {             bag.insert(x + v[i]);             pep[x + v[i]] = pep[x];             pep[x + v[i]].push_back(v[i]);           }           if (bag.size() > k) break;         }       }       pep.erase(pep.begin());       for (auto& it : pep) {         cout << it.second.size() <<    ;         for (auto& x : it.second) {           cout << x <<    ;         }         cout <<   n ;       }     }     cerr <<  processor time:   << clock() / (double)CLOCKS_PER_SEC <<  s     ;     return 0;   }   