Compilare: main.cpp: In function 'int main()': main.cpp:38:11: warning: unused variable 'x' [-Wunused-variable] int n,x,i,cer,a,b; ^ main.cpp:38:13: warning: unused variable 'i' [-Wunused-variable] int n,x,i,cer,a,b; ^ main.cpp:38:15: warning: unused variable 'cer' [-Wunused-variable] int n,x,i,cer,a,b; ^~~ main.cpp:38:19: warning: unused variable 'a' [-Wunused-variable] int n,x,i,cer,a,b; ^ main.cpp:38:21: warning: unused variable 'b' [-Wunused-variable] int n,x,i,cer,a,b; ^