闘本 1.2 順列チェック

提出

code: python

import defaultdict

def check_permutation(s1, s2):

if len(s1) != len(s2):

return False

first = defaultdict(int)

second = defaultdict(int)

for i in range(len(s1)):

first[s1i] += 1

for i in range(len(s2)):

second[s2i] += 1

for k, v in first.items():

if secondk != v:

return False

return True

実行結果

code: zsh

import defaultdict

ModuleNotFoundError: No module named 'defaultdict'