def test_single_number(self):
random.seed('test')
self.assertEqual(0, single_number([1, 0, 2, 1, 2, 3, 3]))
self.assertEqual(101, single_number([101]))
single = random.randint(1, 100000)
nums = [random.randint(1, 100000) for _ in range(1000)]
nums *= 2 # nums contains pairs of random integers
nums.append(single)
random.shuffle(nums)
self.assertEqual(single, single_number(nums))
def test_single_number(self):
arr = []
for i in range(1000):
arr.append(i)
arr.append(i)
random.shuffle(arr)
rand_index = random.randint(0, len(arr))
num = arr.pop(rand_index)
self.assertEqual(single_number(arr), num)
def find_difference(s, t):
return chr(single_number([ord(ch) for ch in s + t]))
def test_single_number(self):
self.assertEqual(single_number([2, 2, 1]), 1)
self.assertEqual(single_number([4, 1, 2, 1, 2]), 4)
self.assertEqual(single_number([1]), 1)