jlengrand/project_euler
1
0
Fork 0
mirror of https://github.com/jlengrand/project_euler.git synced 2026-03-10 08:41:20 +00:00
Code Issues Packages Projects Releases Wiki Activity

Solves Problem 8

Browse Source 
Prepares Problem 9

Creates a bash script which will do templates for me
This commit is contained in:
Julien Lengrand-Lambert
2012-01-13 10:54:30 +01:00
parent 126205f97a
commit 3b6ce5578f
3 changed files with 75 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
e_8.py
View File

@@ -28,32 +28,28 @@ Find the greatest product of five consecutive digits in the 1000-digit number.
71636269561882670428252483600823257530420752963450
#---
"""
from operator import mul
def greatest_product(data):
"""
Returns the greatest product of five consecutive digits in the input data.
"""
cons_list = []
great_prod = 0
# print list of 5 consecutive digits
for j in range(len(data) - 4):
suite = data[j:j+5]
if is_consecutive(suite):
cons_list.append(suite)
prod = suite_to_product(data[j:j+5])
if prod > great_prod :
great_prod = prod
return great_prod
return 1
def is_consecutive(suite):
def suite_to_product(suite):
"""
Returns true if values in suite are consecutive and False otherwise
Returns product of all elements of a string
"""
cons = True
for k in range(len(suite) - 1):
if ((int(suite[k]) + 1) != int(suite[k + 1])):
cons = False
return cons
return reduce(mul, [int(el) for el in list(suite)])
if __name__ == '__main__':
# really bad way to present it
data = "7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522744304355766896648950445244523161731856403098711121722383113622298934233803081353362766142828064444866452387493035890729629049156044077239071381051585930796086670172427121883998797908792274921901699720888093776657273330010533678812202354218097512545405947522435258490771167055601360483958644670632441572215539753697817977846174064955149290862569321978468622482839722413756570560574902614079729686524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054421750694165896040807198403850962455444362981230987879927244284909188845801561660979191338754992005240636899125607176060588611646710940507754100225698315520005593572972571636269561882670428252483600823257530420752963450"
#print data
print "Answer : %d " % (greatest_product(data))