Python max_product_fast示例

示例#1

文件： max_product_test.py 项目： tom812191/qcentrix-tom-babineau

 def test_full_length(self):
     self.assertEqual(max_product_fast([1, 3, 7, 9]), 3 * 7 * 9)
     self.assertEqual(max_product_fast([-100, -1, 9, 5]), -100 * -1 * 9)
     self.assertEqual(max_product_fast([100, -1, -1, 0, 5]), 100 * -1 * -1)
     self.assertEqual(max_product_fast([-100, 1, 5, 0]), 0)
     self.assertEqual(max_product_fast([1, 2, 3, 4, 5, -1, -2, -3, -4, -5]),
                      -5 * -4 * 5)
     self.assertEqual(max_product_fast([100, -1, -1, -1, -1, -1, 0, 0, 0]),
                      100 * -1 * -1)
     self.assertEqual(max_product_fast([-100, -1, -1, -1, -1, -1, 0, 0, 0]),
                      0)
     self.assertEqual(max_product_fast((-100, -1, -1, -1, -1, -1, 0, 0, 0)),
                      0)
     self.assertEqual(max_product_fast([-1, -2, -3, -4, -5]), -1 * -2 * -3)
     self.assertEqual(max_product_fast([0, -1, -2, -3, -4, -5]), 0)

示例#2

文件： max_product_test.py 项目： tom812191/qcentrix-tom-babineau

 def test_short_length(self):
     self.assertEqual(max_product_fast([0]), 0)
     self.assertEqual(max_product_fast([1]), 1)
     self.assertEqual(max_product_fast((0, )), 0)
     self.assertEqual(max_product_fast((1, )), 1)
     self.assertEqual(max_product_fast([-1]), -1)
     self.assertEqual(max_product_fast([1, 0]), 1 * 0)
     self.assertEqual(max_product_fast([5, 5]), 5 * 5)
     self.assertEqual(max_product_fast([-5, 5]), -5 * 5)
     self.assertEqual(max_product_fast((1, 0)), 1 * 0)
     self.assertEqual(max_product_fast((5, 5)), 5 * 5)
     self.assertEqual(max_product_fast((-5, 5)), -5 * 5)
     self.assertEqual(max_product_fast([-5, 5, 1]), -5 * 5 * 1)
     self.assertEqual(max_product_fast([5, 5, 1]), 5 * 5 * 1)
     self.assertEqual(max_product_fast((-5, 5, 1)), -5 * 5 * 1)
     self.assertEqual(max_product_fast((5, 5, 1)), 5 * 5 * 1)

示例#3

文件： max_product_test.py 项目： tom812191/qcentrix-tom-babineau

 def test_empty(self):
     self.assertEqual(max_product_fast(None), None)
     self.assertEqual(max_product_fast([]), None)
     self.assertEqual(max_product_fast(()), None)

示例#4

文件： max_product_test.py 项目： tom812191/qcentrix-tom-babineau

    def test_invalid(self):
        with self.assertRaises(TypeError):
            max_product_fast(0)

        with self.assertRaises(TypeError):
            max_product_fast({'key': 0})

示例#5

文件： max_product_profile.py 项目： tom812191/qcentrix-tom-babineau

import time
from random import randint

from max_product import max_product, max_product_fast

arrays = []
for exp in range(1, 8):
    arrays.append([randint(-100, 100) for _ in range(10**exp)])

# Profile max_product
for array in arrays:
    start = time.time()
    mp = max_product(array)
    elapsed = time.time() - start

    print(f'max_product: {elapsed} for array of length {len(array)}')

    start = time.time()
    mp = max_product_fast(array)
    elapsed = time.time() - start

    print(f'max_product_fast: {elapsed} for array of length {len(array)}')