def test5(self):
vertices = [[0, 2], [4, 7], [10, 0]]
res = answer4_1(vertices)
self.assertEqual(res, 28)
def test4(self):
vertices = [[91207, 89566], [-88690, -83026], [67100, 47194]]
res = answer4_1(vertices)
self.assertEqual(res, 1730960165)
def test2(self):
vertices = [[2, 3], [11, 7], [14, 19]]
res = answer4_1(vertices)
self.assertEqual(res, 45)
def test3(self):
vertices = [[2, 3], [6, 9], [10, 160]]
res = answer4_1(vertices)
self.assertEqual(res, 289)
def test1(self):
vertices = [[-1000000000, -1000000000], [1000000000, 1000000000], [100, -100]]
res = answer4_1(vertices)
self.assertEqual(res, 198999999901)
