练24.2 循环求和
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说明
利用for、while循环。计算输出的和。
输入格式
输入。对于100%的数据，。
输出格式
如题述，之和。
样例
10552024022204-day4
- Status
- Done
- Rule
- ACM/ICPC
- Problem
- 9
- Start at
- 2024-2-22 17:00
- End at
- 2024-2-22 18:30
- Duration
- 1.5 hour(s)
- Host
-
jack
- Partic.
- 4