Compilare: user.cpp: In function ‘int main()’: user.cpp:9:64: warning: unused variable ‘maxsol’ [-Wunused-variable] int N, v[4001], a[4001] = {0}, i, j, x, y, l, ok, ctp = 0, maxsol=0, s, aux; ^ user.cpp:9:74: warning: unused variable ‘s’ [-Wunused-variable] int N, v[4001], a[4001] = {0}, i, j, x, y, l, ok, ctp = 0, maxsol=0, s, aux; ^ user.cpp:71:28: warning: ‘dr’ may be used uninitialized in this function [-Wmaybe-uninitialized] int lg = 1, lgmax = 0, dr, pmax=0; ^