练24.2 for循环求和
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说明
利用for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
10
55
第二节课比赛
- Status
- Done
- Rule
- ACM/ICPC
- Problem
- 5
- Start at
- 2025-2-9 17:30
- End at
- 2025-2-15 12:30
- Duration
- 139 hour(s)
- Host
- Partic.
- 3