Compilare: user.cpp: In function ‘int cmlsc(std::vector<int>, int)’: user.cpp:51:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<a.size(); i++){ ~^~~~~~~~~ user.cpp: In function ‘void interclasare()’: user.cpp:98:5: warning: unused variable ‘i’ [-Wunused-variable] int i, j; ^ user.cpp:98:8: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^