from collections import defaultdict
class Solution:
def isAnagram(self, s: str, t: str) -> bool:
letter = defaultdict(int)
for le in s:
letter[le] += 1
for le in t:
letter[le] -= 1
return all(count == 0 for count in letter.values())
return문 들여쓰기 잘못해서 30분 해맴;;;;;;