【刷题】Sum of Digits【1】
- 一、题目
- 1.题目描述
- 二、解题报告
- 1.思路分析
- 2.代码详解
一、题目
1.题目描述
题目：
输入：
输出：
示例 :
提示: In the first sample the number already is one-digit — Herald can’t cast a spell. The second test contains number 10. After one casting of a spell it becomes 1, and here the process is completed. Thus, Gerald can only cast the spell once. The third test contains number 991. As one casts a spell the following transformations take place: 991 → 19 → 10 → 1. After three transformations the number becomes one-digit.
二、解题报告
1.思路分析
- 不断对数字按位进行累加，直到变成一个数字为止
2.代码详解
python
