Cut Pyramid

Problem Description
Yaya and maomao have a cake. And the shape of the cake is a pyramid. As the following picture, AB=AC=AD=BC=BD=CD=N. Now they want to cut the cake to two same volume pieces as following picture. And EF is on the plane BCD and parallel to CD. GH is on the plane ACD and parallel to CD, too. Now give you the length of CE=L, and ask you to calculate the length of AG.

Input
Input contains multiple cases each presented on a separate line. Each line contains two integer numbers N(5<=N<=1000),L (0<=L<=N).

Output
For each test case, your program should output the length of AG hold 2 digits after the decimal point. If the answer is absent, output “Oh, my god!”.

Sample Input
1000 500
1000 200

Sample Output
500.00
Oh, my god!

1个回答

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抄袭、复制答案,以达到刷声望分或其他目的的行为,在CSDN问答是严格禁止的,一经发现立刻封号。是时候展现真正的技术了!