Compilare: main.cpp: In function 'bool compute()': main.cpp:100:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0;i < vec.size();++i) { ~~^~~~~~~~~~~~ main.cpp: In function 'bool getRes(bool, bool, char)': main.cpp:96:1: warning: control reaches end of non-void function [-Wreturn-type] } ^