Code Signal: Intro=33/60
습관중독
from itertools import permutations def diff(w1, w2): return sum([a[0] != a[1] for a in zip(w1, w2)]) == 1 def stringsRearrangement(inputArray): for z in permutations(inputArray): if sum([diff(*x) for x in zip(z, z[1:])]) == len(inputArray) - 1: return True return False