foo.cc:13:6: error: stray '#' in program
  else#include <iostream>
      ^
foo.cc: In function 'int main()':
foo.cc:6:6: warning: statement has no effect [-Wunused-value]
    n / 100;
    ~~^~~~~
foo.cc:11:3: error: 'cout' was not declared in this scope
   cout << "Yes"; 
   ^~~~
foo.cc:13:7: error: 'include' was not declared in this scope
  else#include <iostream>
       ^~~~~~~
foo.cc:13:7: note: suggested alternative: '__has_include'
  else#include <iostream>
       ^~~~~~~
       __has_include
foo.cc:13:16: error: 'iostream' was not declared in this scope
  else#include <iostream>
                ^~~~~~~~
foo.cc:14:3: error: 'cin' was not declared in this scope
   cin >> n;
   ^~~
foo.cc:14:3: note: suggested alternative: 'main'
   cin >> n;
   ^~~
   main
foo.cc:17:3: error: 'cout' was not declared in this scope
   cout << "No";
   ^~~~
foo.cc:17:15: error: expected '}' before ';' token
   cout << "No";
               ^
foo.cc:17:15: error: cannot convert '<brace-enclosed initializer list>' to 'int' in assignment
foo.cc: At global scope:
foo.cc:19:2: error: expected unqualified-id before 'return'
  return 0;
  ^~~~~~
foo.cc:20:1: error: expected declaration before '}' token
 }
 ^

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