Compilare: user.cpp: In function ‘void RMQ(long int, long int)’: user.cpp:26:27: warning: variable ‘z’ set but not used [-Wunused-but-set-variable] int x,y,z; ^ user.cpp: In function ‘int main()’: user.cpp:52:19: warning: unused variable ‘nr’ [-Wunused-variable] { long m,n,h,w,t,nr,i,j,k,l,ma=-1,a,b; ^ user.cpp:52:28: warning: unused variable ‘l’ [-Wunused-variable] { long m,n,h,w,t,nr,i,j,k,l,ma=-1,a,b; ^ user.cpp:52:36: warning: unused variable ‘a’ [-Wunused-variable] { long m,n,h,w,t,nr,i,j,k,l,ma=-1,a,b; ^ user.cpp:52:38: warning: unused variable ‘b’ [-Wunused-variable] { long m,n,h,w,t,nr,i,j,k,l,ma=-1,a,b; ^