molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:13:5: error: 'll' was not declared in this scope; did you mean 'l'?
13 | ll sum = 0,j = 0;
| ^~
| l
molecules.cpp:15:15: error: 'j' was not declared in this scope
15 | while(j < n && sum < l){
| ^
molecules.cpp:15:24: error: 'sum' was not declared in this scope
15 | while(j < n && sum < l){
| ^~~
molecules.cpp:19:12: error: 'sum' was not declared in this scope
19 | if(sum >= l && sum <= u){
| ^~~
molecules.cpp:20:27: error: 'j' was not declared in this scope
20 | for(int o=i;o<j;o++){
| ^
molecules.cpp:25:9: error: 'sum' was not declared in this scope
25 | sum -= vp[i].first;
| ^~~