def test_simple_1(self):
arr = [1, 1, 2, 2]
result = IlyaGame.answer(len(arr), arr)
expected = 2
self.assertEqual(expected, result)
def test_simple_2(self):
arr = []
result = IlyaGame.answer(len(arr), arr)
expected = 0
self.assertEqual(expected, result)
