Compilare: user.cpp: In function ‘int main()’: user.cpp:23:35: warning: unused variable ‘Sum’ [-Wunused-variable] long long SMAX = 1LL * a[1] * N, Sum = 0; ^ user.cpp:24:13: warning: unused variable ‘vv’ [-Wunused-variable] int last=1,vv; ^ user.cpp:29:12: warning: unused variable ‘inter’ [-Wunused-variable] long long inter, now=1111111111111111LL; ^ user.cpp:29:19: warning: variable ‘now’ set but not used [-Wunused-but-set-variable] long long inter, now=1111111111111111LL; ^ user.cpp:113:6: warning: variable ‘pzmax’ set but not used [-Wunused-but-set-variable] int pzmax; ^