Compilare: user.cpp: In function ‘int main()’: user.cpp:27:9: warning: unused variable ‘n’ [-Wunused-variable] int n,i=1,cer,j=0,cnte=0,cntv=0,a,b; ^ user.cpp:27:37: warning: unused variable ‘a’ [-Wunused-variable] int n,i=1,cer,j=0,cnte=0,cntv=0,a,b; ^ user.cpp:27:39: warning: unused variable ‘b’ [-Wunused-variable] int n,i=1,cer,j=0,cnte=0,cntv=0,a,b; ^