Compilare: user.cpp: In function ‘void Append(short int)’: user.cpp:32:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(k > v.size()) ~~^~~~~~~~~~ user.cpp: In function ‘void Tipar()’: user.cpp:43:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(short i = 0; i < v.size(); ++i) ~~^~~~~~~~~~ user.cpp: In function ‘short int pos(short int)’: user.cpp:22:1: warning: control reaches end of non-void function [-Wreturn-type] } ^