Compilare: user.cpp: In function ‘int part(long unsigned int*, int, int)’: user.cpp:20:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (v[i] < piv) ^ user.cpp:22:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (v[j] > piv) ^ user.cpp: In function ‘void statord(long unsigned int*, int, int, int)’: user.cpp:42:9: warning: unused variable ‘p’ [-Wunused-variable] int p = poz - l + 1; ^