문제 링크: https://leetcode.com/problems/ransom-note/description/?envType=study-plan-v2&envId=top-interview-150 [풀이 코드]class Solution: def canConstruct(self, ransomNote: str, magazine: str) -> bool: # letter -> int book = {} for letter in magazine: if letter in book: book[letter] += 1 else: book[letter] = 1 fo..