Created
May 3, 2020 10:16
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코딩테스트 연습 콜라츠 추측
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public int solution(int num) | |
{ | |
int answer = 0; | |
while (num != 1) | |
{ | |
if (num % 2 == 0) | |
{ | |
num /= 2; | |
} | |
else if (num % 2 == 1) | |
{ | |
num = (num *= 3) + 1; | |
} | |
if (answer == 500) | |
{ | |
answer = -1; | |
break; | |
} | |
answer++; | |
} | |
return answer; | |
} | |
//다른사람이 푼 풀이 | |
//겁나 깔 | |
public class Solution { | |
public int solution(int num) { | |
long lNum = num; | |
for (int i = 0; i < 500; i++) | |
{ | |
if (lNum == 1) return i; | |
lNum = lNum % 2 == 0 ? lNum / 2 : lNum * 3 + 1; | |
} | |
return -1; | |
} | |
} | |
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