[Level 2] - 튜플

https://programmers.co.kr/learn/courses/30/lessons/64065?language=python3 

코딩테스트 연습 - 튜플

 

나의 풀이

import re

def solution(s):
    answer = []
    
    s_split = list()    
    s_dict = dict()

    for i in re.split(r'{*}', s):
        tmp = []     
        if i != '':
            for k in i.split(','):
                if k != '':               
                    tmp.append(re.sub(r"[^0-9]","",k))
        
        if tmp != []:        
            s_split.append(tmp)

    for i in s_split:
        for j in i:
            if j in s_dict:
                s_dict[j] += 1
            else:
                s_dict[j] = 1
    
    sorted_dict = sorted(s_dict.items(), key = lambda x: x[1], reverse=True)
    
    answer = [int(i[0]) for i in sorted_dict]  
    
    return answer

 

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다른 사람의 풀이

 

• 한 줄 장인

def solution(s):

    s = Counter(re.findall('\d+', s))
    return list(map(int, [k for k, v in sorted(s.items(), key=lambda x: x[1], reverse=True)]))

import re
from collections import Counter

 

• 파싱 참고

def solution(s):
    answer = []

    s1 = s.lstrip('{').rstrip('}').split('},{')

    new_s = []
    for i in s1:
        new_s.append(i.split(','))

    new_s.sort(key = len)

    for i in new_s:
        for j in range(len(i)):
            if int(i[j]) not in answer:
                answer.append(int(i[j]))

    return answer