def buildDPath(graph, distance, predecessor):
u = "finish"
path = [u]
while predecessor[u] != "start":
u = predecessor[u]
path.append(u)
path.append("start")
path.reverse()
numbers = []
for u, v in window(path, 2):
for node, weight in graph[u]:
if node == v:
numbers.append(-weight)
return numbers, -distance["finish"]
def buildPath(graph, distance, predecessor):
next_node = predecessor["finish"]
path = []
while next_node != "start":
path.append(next_node)
next_node = predecessor[next_node]
path.append("start")
path.reverse()
numbers = []
for u, v in window(path, 2):
for node, weight in graph[u]:
if node == v:
numbers.append(-weight)
return numbers, -distance["finish"]
def buildPath(graph, distance, predecessor):
next_node = predecessor["finish"]
path = []
while next_node != "start":
path.append(next_node)
next_node = predecessor[next_node]
path.append("start")
path.reverse()
numbers = []
for u, v in window(path, 2):
for node, weight in graph[u]:
if node == v:
numbers.append(-weight)
return numbers, -distance["finish"]
def buildDPath(graph, distance, predecessor):
u = "finish"
path = [u]
while predecessor[u] != "start":
u = predecessor[u]
path.append(u)
path.append("start")
path.reverse()
numbers = []
for u, v in window(path, 2):
for node, weight in graph[u]:
if node == v:
numbers.append(-weight)
return numbers, -distance["finish"]
#!/usr/bin/env python3
from functools import reduce
from operator import mul
from butils.generators import window
if __name__ == "__main__":
window_size = 13
string = "7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522744304355766896648950445244523161731856403098711121722383113622298934233803081353362766142828064444866452387493035890729629049156044077239071381051585930796086670172427121883998797908792274921901699720888093776657273330010533678812202354218097512545405947522435258490771167055601360483958644670632441572215539753697817977846174064955149290862569321978468622482839722413756570560574902614079729686524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054421750694165896040807198403850962455444362981230987879927244284909188845801561660979191338754992005240636899125607176060588611646710940507754100225698315520005593572972571636269561882670428252483600823257530420752963450"
multiplyAll = lambda seq: reduce(mul, seq)
max_value = 0
max_digits = ()
for str_digits in window(string, window_size):
digits = tuple(map(int, str_digits))
value = multiplyAll(digits)
if value > max_value:
max_value = value
max_digits = digits
print("{} = {}".format(" * ".join(map(str, max_digits)), max_value))
