Compilare: user.cpp: In function ‘int main()’: user.cpp:11:9: warning: variable ‘l’ set but not used [-Wunused-but-set-variable] int l,p,n,m,i,st,dri,j; ^ user.cpp:11:11: warning: unused variable ‘p’ [-Wunused-variable] int l,p,n,m,i,st,dri,j; ^ user.cpp:11:19: warning: unused variable ‘st’ [-Wunused-variable] int l,p,n,m,i,st,dri,j; ^ user.cpp:11:22: warning: unused variable ‘dri’ [-Wunused-variable] int l,p,n,m,i,st,dri,j; ^ user.cpp:11:26: warning: unused variable ‘j’ [-Wunused-variable] int l,p,n,m,i,st,dri,j; ^