[codesignal][python] 9. isLucky

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level : easy

Question:

Ticket numbers usually consist of an even number of digits. A ticket number is considered lucky if the sum of the first half of the digits is equal to the sum of the second half.

Given a ticket number n, determine if it's lucky or not.

Example: 

• For n = 1230, the output should be
  isLucky(n) = true;
• For n = 239017, the output should be
  isLucky(n) = false

 

My answer:

def isLucky(n):
    half_len=int(len(str(n))/2)
    half1=list(str(n)[:half_len])
    half1=list(map(lambda x:int(x), half1))
    half2=list(str(n)[half_len:])
    half2=list(map(lambda x:int(x), half2))
    if(sum(half1)==sum(half2)):
        return True
    else:
        return False

• string으로 변환후 반 잘라서 자릿수 확인한다.
• 앞에 부분의 합 ==뒷 부분의 합 : True