My solutions to the problems found at Project Euler.

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Problem 8


#! /usr/bin/python
# Problem: Find the largest product if 5-consecutive digits in the given 1000-digit number.
# Solution: Test the product of every 5-digit sequence and compare them.
import re
if __name__ == "__main__":
  test = """73167176531330624919225119674426574742355349194934
            96983520312774506326239578318016984801869478851843
            85861560789112949495459501737958331952853208805511
            12540698747158523863050715693290963295227443043557
            66896648950445244523161731856403098711121722383113
            62229893423380308135336276614282806444486645238749
            30358907296290491560440772390713810515859307960866
            70172427121883998797908792274921901699720888093776
            65727333001053367881220235421809751254540594752243
            52584907711670556013604839586446706324415722155397
            53697817977846174064955149290862569321978468622482
            83972241375657056057490261407972968652414535100474
            82166370484403199890008895243450658541227588666881
            16427171479924442928230863465674813919123162824586
            17866458359124566529476545682848912883142607690042
            24219022671055626321111109370544217506941658960408
            07198403850962455444362981230987879927244284909188
            84580156166097919133875499200524063689912560717606 
            05886116467109405077541002256983155200055935729725 
            71636269561882670428252483600823257530420752963450"""
  
  test = re.sub(r'\s', '', test) # Remove new-lines and spaces.
  
  digit_sets = []
  for i in range(0,len(test)-5,1):
    digit_sets.append( test[i:i+5] )
  
  
  prod_of_digit_sets = []
  for digits in digit_sets:
    product = 1
    for digit in digits:
      product *= int(digit)
    prod_of_digit_sets.append(product)
    
  prod_of_digit_sets.sort()
  print prod_of_digit_sets.pop()

jb