molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:6:3: error: 'll' was not declared in this scope; did you mean 'l'?
6 | ll sum = 0;
| ^~
| l
molecules.cpp:8:5: error: 'sum' was not declared in this scope
8 | sum += w[i];
| ^~~
molecules.cpp:11:7: error: 'sum' was not declared in this scope
11 | if (sum < l or mn > u) return vector<int>(0);
| ^~~
molecules.cpp:13:3: error: 'sum' was not declared in this scope
13 | sum = 0;
| ^~~
molecules.h:1:9: warning: #pragma once in main file
1 | #pragma once
| ^~~~
molecules_c.h:1:9: warning: #pragma once in main file
1 | #pragma once
| ^~~~