#!/usr/bin/python3 from timeit import default_timer def main(): start = default_timer() number = '73167176531330624919225119674426574742355349194934' +\ '96983520312774506326239578318016984801869478851843' +\ '85861560789112949495459501737958331952853208805511' +\ '12540698747158523863050715693290963295227443043557' +\ '66896648950445244523161731856403098711121722383113' +\ '62229893423380308135336276614282806444486645238749' +\ '30358907296290491560440772390713810515859307960866' +\ '70172427121883998797908792274921901699720888093776' +\ '65727333001053367881220235421809751254540594752243' +\ '52584907711670556013604839586446706324415722155397' +\ '53697817977846174064955149290862569321978468622482' +\ '83972241375657056057490261407972968652414535100474' +\ '16427171479924442928230863465674813919123162824586' +\ '17866458359124566529476545682848912883142607690042' +\ '24219022671055626321111109370544217506941658960408' +\ '07198403850962455444362981230987879927244284909188' +\ '84580156166097919133875499200524063689912560717606' +\ '05886116467109405077541002256983155200055935729725' +\ '71636269561882670428252483600823257530420752963450' number = list(map(int, number)) max_ = 0 for i in range(1000-13): curr = number[i:i+13] prod = 1 for j in range(len(curr)): prod = prod * curr[j] if prod > max_: max_ = prod end = default_timer() print('Project Euler, Problem 8') print('Answer: {}'.format(max_)) print('Elapsed time: {:.9f} seconds'.format(end - start)) if __name__ == '__main__': main()