Compilare: user.cpp: In function ‘int main()’: user.cpp:27:20: warning: unused variable ‘n1’ [-Wunused-variable] int i,x,y,nr,j,n1,n2,tot,maxim=0,curent,nrmax; ^ user.cpp:27:23: warning: unused variable ‘n2’ [-Wunused-variable] int i,x,y,nr,j,n1,n2,tot,maxim=0,curent,nrmax; ^ user.cpp:27:26: warning: variable ‘tot’ set but not used [-Wunused-but-set-variable] int i,x,y,nr,j,n1,n2,tot,maxim=0,curent,nrmax; ^ user.cpp:27:45: warning: unused variable ‘nrmax’ [-Wunused-variable] int i,x,y,nr,j,n1,n2,tot,maxim=0,curent,nrmax; ^