分段函数
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Description
计算如下函数值。保证x是整数。
$$ f(x)=\left\{ \begin{aligned} & 0 & \ x< 0 \\ & 2 \times x & \ 0 \leq x <10 \\ & 2x+1 & \ 10 \leq x < 50 \\ & x \div 2 +50 & \ 50 \leq x \end{aligned} \right. $$Input Format
一个整数x。
Output Format
一个保留4位小数的实数。
Sample
input
53
output
76.5000
Hint
保证。
时间限制：
空间限制：
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
-
admin
- Partic.
- 17
