[BOJ][Python] 9506 약수들의 합

[문제]

https://www.acmicpc.net/problem/9506

9506번: 약수들의 합

 

 

[코드]

#풀어쓴 코드

while True:
    n = int(input())
    if n == -1:
        break 
    
    answer = ''
    arr = []
    
    for i in range(1,n):
        if n % i == 0:
            arr.append(i)

    if sum(arr) == n:
        cnt = 0
        for i in range(len(arr)):
            answer += str(arr[i])
            if cnt < len(arr)-1:
                answer += ' + '
                cnt += 1
                
        print(n,"=",answer)
    
    else:
        print(n,"is NOT perfect.")

#축약된 코드

while True:
    n = int(input())
    if n == -1:
        break 
    
    arr = [i for i in range(1,n) if n % i == 0]

    if sum(arr) == n:
    	print(n,"=",' + '.join(map(str,arr)))    
    else:
        print(n,"is NOT perfect.")