[Programmers] - 콜라츠 추측 (Level 1)

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연습문제
LEVEL : 1
문제링크

num = 6

def solution(num):
    cnt = 0

    while num != 1:
        cnt+=1

        if num%2==0:
            num = num/2
        else:
            num = num*3+1

    if cnt>500: cnt = -1
    return cnt

solution(num)

8