Compilare: user.cpp: In function ‘int main()’: user.cpp:32:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < a.size(); ++i ) ^ user.cpp: In function ‘void Debug(int)’: user.cpp:90:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < a.size(); ++i ) ^ user.cpp:95:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < b.size(); ++i ) ^ user.cpp: In function ‘short int Directie(char)’: user.cpp:74:1: warning: control reaches end of non-void function [-Wreturn-type] } ^