Compilare: user.cpp: In function ‘int st_add(int*, int&, int)’: user.cpp:18:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:33:7: warning: unused variable ‘max1’ [-Wunused-variable] int n,max1,max2,j,i,x[16000001],nr=0,r,nrr=0,a[8192],v,st[8192]; ^ user.cpp:33:12: warning: unused variable ‘max2’ [-Wunused-variable] int n,max1,max2,j,i,x[16000001],nr=0,r,nrr=0,a[8192],v,st[8192]; ^ user.cpp:33:17: warning: unused variable ‘j’ [-Wunused-variable] int n,max1,max2,j,i,x[16000001],nr=0,r,nrr=0,a[8192],v,st[8192]; ^ user.cpp:33:38: warning: unused variable ‘r’ [-Wunused-variable] int n,max1,max2,j,i,x[16000001],nr=0,r,nrr=0,a[8192],v,st[8192]; ^