title: C Program Factorial Number 2
signature: function c_program_factorial_number_2(n)
test_code: using Printf
  
  # SOLUTION CODE
  # ============================================
  PLACEHOLDER_CODE_BODY
  
  # TESTING CODE 
  # ============================================
  function validate_solution(actual, expected)
      return actual == expected
  end
  
  function driver(n, expected)
      try
  
          if validate_solution(PLACEHOLDER_FN_NAME(n), expected)
              return "PASSED";
          end
          return "FAILED";
      catch exception_obj
          return string(Base.typename(typeof(exception_obj)).wrapper);
      end
  end
  
  function main()
      
      result = driver(19, 121645100408832000);
      @printf("TEST-0...%s\n",result);
      
  end
  
  main()
source_py: def c_program_factorial_number_2(n):
      return (1 if ((n == 1) or (n == 0)) else (n * c_program_factorial_number_2((n - 1))))
source_cpp: int c_program_factorial_number_2(int n) {
    return ( n == 1 || n == 0 ) ? 1 : n * c_program_factorial_number_2 ( n - 1 );
  }