Compilare: user.cpp: In function ‘int main()’: user.cpp:60:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < miha.size(); i++) ^ user.cpp:61:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < prof.size(); j++) { ^