Run id: 123915

Main.cc:1:1: error: 'ng' does not name a type
 ng namespace std;
 ^
Main.cc: In function 'int main()':
Main.cc:6:15: error: 'scanf' was not declared in this scope
  scanf("%d",&n);
               ^
Main.cc:21:15: error: 'printf' was not declared in this scope
  printf("%d",m);
               ^