Record-Project-Euler/PE008.py at master · Rochsen/Record-Project-Euler · GitHub

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#!/usr/bin/env python
# -*coding:UTF-8-*-
"""
@Project hello_world
@File PE008.py
@Author Haosen Luo
@Date 2025/1/10 22:42

连续数字最大乘积
在如下的$1000$位数中，连续四个数字的最大乘积是 9*9*8*9 = 5832。

求这个 1000 位数中连续十三个数字的最大乘积。

"""
import math
import numpy as np

sequence = '''
73167176531330624919225119674426574742355349194934
96983520312774506326239578318016984801869478851843
85861560789112949495459501737958331952853208805511
12540698747158523863050715693290963295227443043557
66896648950445244523161731856403098711121722383113
62229893423380308135336276614282806444486645238749
30358907296290491560440772390713810515859307960866
70172427121883998797908792274921901699720888093776
65727333001053367881220235421809751254540594752243
52584907711670556013604839586446706324415722155397
53697817977846174064955149290862569321978468622482
83972241375657056057490261407972968652414535100474
82166370484403199890008895243450658541227588666881
16427171479924442928230863465674813919123162824586
17866458359124566529476545682848912883142607690042
24219022671055626321111109370544217506941658960408
07198403850962455444362981230987879927244284909188
84580156166097919133875499200524063689912560717606
05886116467109405077541002256983155200055935729725
71636269561882670428252483600823257530420752963450'''

sequence = sequence.replace('\n', '')


def cum(string):
    return eval('*'.join(i for i in string))


def main(string_length=4):
    max_num = 0
    combo = ''

    for idx in range(len(sequence)):
        splice = sequence[idx: idx + string_length]

        res = cum(splice)

        if res > max_num:
            max_num = res
            combo = splice

    return max_num, combo


if __name__ == '__main__':
    a = main(4)
    b = main(13)

    print(a, b)