외계행성의 나이 - chr, join 메서드

나의 풀이

from string import ascii_lowercase
alphabet_list = list(ascii_lowercase)
print(alphabet_list)

def solution(age):
    a=[]
    b=''
    for i in str(age):
       p=int(i)
       result=alphabet_list[p]
       a.append(result)
    for j in a:
       b= b +j
    return b

 

모범답안 

def solution(age):
    return ''.join([chr(int(i)+97) for i in str(age)])