Compilare: user.cpp: In function ‘int main()’: user.cpp:42:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v.size(); i++) ^ user.cpp:44:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < p.size(); j++) ^ user.cpp:40:6: warning: unused variable ‘crt’ [-Wunused-variable] int crt = 0; ^