Compilare: user.cpp: In function ‘int main()’: user.cpp:65:13: warning: unused variable ‘nx’ [-Wunused-variable] int n,m,nx,ny,x,y; ^ user.cpp:65:16: warning: unused variable ‘ny’ [-Wunused-variable] int n,m,nx,ny,x,y; ^ user.cpp:65:19: warning: unused variable ‘x’ [-Wunused-variable] int n,m,nx,ny,x,y; ^ user.cpp:65:21: warning: unused variable ‘y’ [-Wunused-variable] int n,m,nx,ny,x,y; ^