Compilare: user.cpp: In function ‘bool verif(int, int)’: user.cpp:16:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(str[ind].size() >= poz) ^ user.cpp:18:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < str[ind].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:32:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i < fin.size(); i++) ^