Compilare: user.cpp: In function ‘int main()’: user.cpp:9:24: warning: unused variable ‘n2’ [-Wunused-variable] short int n,s,s2=0,n2,i=0,i2,j,l,l2,r,k,k2; ^ user.cpp:9:34: warning: unused variable ‘j’ [-Wunused-variable] short int n,s,s2=0,n2,i=0,i2,j,l,l2,r,k,k2; ^ user.cpp:9:36: warning: unused variable ‘l’ [-Wunused-variable] short int n,s,s2=0,n2,i=0,i2,j,l,l2,r,k,k2; ^ user.cpp:9:38: warning: unused variable ‘l2’ [-Wunused-variable] short int n,s,s2=0,n2,i=0,i2,j,l,l2,r,k,k2; ^ user.cpp:9:41: warning: unused variable ‘r’ [-Wunused-variable] short int n,s,s2=0,n2,i=0,i2,j,l,l2,r,k,k2; ^