Main.cc: In function ‘int main()’: Main.cc:7:3: error: ‘h’ was not declared in this scope h=h+16/i; ^ Main.cc:4:8: warning: unused variable ‘n’ [-Wunused-variable] int k,n=16,s=0; ^ Main.cc:4:13: warning: unused variable ‘s’ [-Wunused-variable] int k,n=16,s=0; ^