molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:7:9: error: declaration of 'int l' shadows a parameter
7 | int l = 0;
| ^
molecules.cpp:5:24: note: 'int l' previously declared here
5 | v<int> find_subset(int l, int u, v<int> we) {
| ~~~~^
molecules.cpp:11:20: error: 'w' was not declared in this scope
11 | if(we[l] + w[r] <= u && we[l] + we[r] >= l) {
| ^
molecules.cpp:12:13: error: 'retur' was not declared in this scope
12 | retur{l, r};
| ^~~~~
molecules.cpp:21:14: error: expected ';' before '}' token
21 | return {}
| ^
| ;
22 | }
| ~