Compilare: user.cpp: In function ‘void statord(long int, long int, long int)’: user.cpp:12:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(a[i]<pivot) ^ user.cpp:14:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(a[j]>pivot) ^ user.cpp: In function ‘int main()’: user.cpp:37:12: warning: unused variable ‘poz’ [-Wunused-variable] long n,poz=0,k; ^