Compilare: user.cpp: In function ‘int main()’: user.cpp:89:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v.size(); i++) ~~^~~~~~~~~~ user.cpp:146:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v.size(); i++) ~~^~~~~~~~~~ user.cpp:17:26: warning: unused variable ‘nr’ [-Wunused-variable] int n, Size, putere, nr = 0; ^~