Compilare: user.cpp:15:32: warning: integer overflow in expression [-Woverflow] unsigned long long Min=(1<<31)-1; ^ user.cpp: In function ‘void decomposeNumber(long long unsigned int)’: user.cpp:110:28: warning: unused variable ‘initial’ [-Wunused-variable] unsigned long long i=2,initial=x; ^ user.cpp: In function ‘int main()’: user.cpp:191:28: warning: variable ‘a’ set but not used [-Wunused-but-set-variable] unsigned long long a; ^