Run id: 151548

Main.cc: In function 'int main()':
Main.cc:8:7: error: 'a' was not declared in this scope
  cin>>a; 
       ^
Main.cc:10:5: error: 's' was not declared in this scope
   n=s; 
     ^
Main.cc:7:6: warning: unused variable 'g' [-Wunused-variable]
  int g; 
      ^