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2026-11-05 15:49:58
xxx定律
Time Limit:
1000ms
Memory Limit:
32768KB
This problem will be judged on
HDU
. Original ID:
3782
64-bit integer IO format:
%I64d
Java class name:
Main
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Description
对于一个数n,如果是偶数,就把n砍掉一半;如果是奇数,把n变成 3*n+ 1后砍掉一半,直到该数变为1为止。
请计算需要经过几步才能将n变到1,具体可见样例。
Input
测试包含多个用例,每个用例包含一个整数n,当n为0 时表示输入结束。(1<=n<=10000)
Output
对于每组测试用例请输出一个数,表示需要经过的步数,每组输出占一行。
Sample Input
3 1 0
Sample Output
5 0
Source
浙大计算机研究生复试上机考试-2009年
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