Compilare: user.cpp: In function ‘int cripteaza(int)’: user.cpp:56:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0 ; i <= s.size()-1 ; i++) ^ user.cpp: In function ‘void quicksort(int*, int, int)’: user.cpp:25:23: warning: ‘aux’ may be used uninitialized in this function [-Wmaybe-uninitialized] v[i] = aux; ^