Submission #2658060

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Source Code Expand

from itertools import chain, count, takewhile

x = int(input())

if x > 1:
  ps = takewhile(lambda p: 2**p <= x, count(2))
  bps = (takewhile(lambda y:y <= x, (b**p for b in count(1))) for p in ps)
  print(max(chain.from_iterable(bps)))
else:
  print(1)

Submission Info

Judge Result