title: Detect If Two Integers Have Opposite Signs
signature: function detect_if_two_integers_have_opposite_signs(x, y)
test_code: using Printf
  
  # SOLUTION CODE
  # ============================================
  PLACEHOLDER_CODE_BODY
  
  # TESTING CODE 
  # ============================================
  function validate_solution(actual, expected)
      return actual == expected
  end
  
  function driver(x, y, expected)
      try
  
          if validate_solution(PLACEHOLDER_FN_NAME(x, y), expected)
              return "PASSED";
          end
          return "FAILED";
      catch exception_obj
          return string(Base.typename(typeof(exception_obj)).wrapper);
      end
  end
  
  function main()
      
      result = driver(59, -99, true);
      @printf("TEST-0...%s\n",result);
      
      result = driver(-20, -21, false);
      @printf("TEST-1...%s\n",result);
      
      result = driver(-100, 79, true);
      @printf("TEST-2...%s\n",result);
      
      result = driver(54, -49, true);
      @printf("TEST-3...%s\n",result);
      
      result = driver(-16, 16, true);
      @printf("TEST-4...%s\n",result);
      
      result = driver(-23, -68, false);
      @printf("TEST-5...%s\n",result);
      
      result = driver(93, 37, false);
      @printf("TEST-6...%s\n",result);
      
      result = driver(24, -61, true);
      @printf("TEST-7...%s\n",result);
      
      result = driver(-8, 69, true);
      @printf("TEST-8...%s\n",result);
      
      result = driver(29, 10, false);
      @printf("TEST-9...%s\n",result);
      
  end
  
  main()
source_py: def detect_if_two_integers_have_opposite_signs(x, y):
      return ((x ^ y) < 0)
source_cpp: bool detect_if_two_integers_have_opposite_signs(int x, int y) {
    return ( ( x ^ y ) < 0 );
  }