You have got a cylindrical cup. Its bottom diameter is 2 units and its height is 2 units as well.
The height of liquid level in the cup is d (0 ≤ d ≤ 2). When you incline the cup to the maximal angle such that the liquid inside has not been poured out, what is the area of the surface of the liquid?
Input
The first line is the number of test cases. For each test case, a line contains a float-point number d.
Output
For each test case, output a line containing the area of the surface rounded to 5 decimal places.
Sample Input
4
0
1
2
0.424413182
Sample Output
0.00000
4.44288
3.14159
3.51241
Source
2016ACM/ICPC亚洲区沈阳站-重现赛(感谢东北大学)
Recommend
jiangzijing2015
长按二维码向我转账
受苹果公司新规定影响,微信 iOS 版的赞赏功能被关闭,可通过二维码转账支持公众号。
阅读
好看
已推荐到看一看
你的朋友可以在“发现”-“看一看”看到你认为好看的文章。
取消
分享想法到看一看
确定
最多200字,当前共字
微信扫一扫
关注该公众号