圆的周长和面积
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Description
给定圆的半径,求圆的周长和面积。 pi取3.14。
Input Format
一个整数,表示圆的半径。 R
Output Format
两行保留两位小数的实数 第一行是周长。 第二行是面积。
Sample
11
output
69.08
379.94
## Hint
半径保证是个大于等于0,小于等于100的整数。
时间限制:1s1s
空间限制:256MB
20200906-贪心基础练习
- Status
- Done
- Rule
- ACM/ICPC
- Problem
- 11
- Start at
- 2020-9-6 13:37
- End at
- 2020-9-26 13:37
- Duration
- 480 hour(s)
- Host
- Partic.
- 17