molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:41:21: error: 'compteur' was not declared in this scope
compteur++;
^~~~~~~~
molecules.cpp:41:21: note: suggested alternative: 'toupper'
compteur++;
^~~~~~~~
toupper
molecules.cpp:51:28: error: expected primary-expression before 'kk'
return std::vector<int>kk;
^~
molecules.cpp:51:28: error: expected ';' before 'kk'
molecules.cpp:51:30: warning: statement has no effect [-Wunused-value]
return std::vector<int>kk;
^