defaultdict1 [프로그래머스] 베스트앨범 / 파이썬 / Python / 해시 💫solutions ) 💬 defaultdict, heapq 모듈 사용 👩💻 code ) from collections import defaultdict import heapq def solution(genres, plays): gen = defaultdict(list) cnt = defaultdict(int) for i in range(len(genres)): heapq.heappush(gen[genres[i]], (-plays[i], i)) cnt[genres[i]] += plays[i] cnt_lst = [] for k, v in cnt.items(): cnt_lst.append((v, k)) cnt_lst.sort(key=lambda x: -x[0]) answer = [] count = 0 fo.. 2020. 11. 2. 이전 1 다음
