Morris' Blog 我在摸索我存在的意義、生命的意義、內涵及價值。 沒有真正神手般的厲害，套用模式是大部分的情況。 沒那麼厲害的我存在的意義為何，襯托出神的存在？ 有時候不能怪別人不給我機會，我已經開始省思， 為什麼我沒有給別人機會的原因，而是全要靠別人。 有時候我認為我與眾不同，那是因為我做不到很多人能辦到的事情。 我聽不到、玩不起來、說得不夠明瞭、理解得不夠多， 我缺少的語文能力，就是一切一切無能的判定。 為此，我不曉得能做些對別人有幫助的事情。 我知道我自己是個不服輸的性格，但現在我不得不認輸。 我沒有能力，因此我必須認輸。 我到底來這世界作什麼？處處充滿不確定性， 而我總是無法出類拔萃，想當個一般人似乎也回不了頭了。 越強大的挑戰需要越強力的支持，而我的支持是什麼？ 最近嘗試與人談話，但都是失敗的結局，沒人能接受， 不需要言語，不需要溝通，一切所想都表達不出來。

49愛的鼓勵 6訂閱站台

Danger Point
Input: standard input
Output: standard output
Time Limit: 1 second

Jamal and Kamal were two friends. They were renowned for their friendship in their area. Once Jamal lend a big amount from Kamal and didn’t back that within time. At first Kamal didn’t say anything to Jamal but after few days when he understood that he was not going to give his money, he became rough on him. And the result is they are now enemies to each other. After 3 months there came another two friends to live, Rahim and Karim. Their houses stood such a way that the lines connecting Jamal's and Kamal's houses with Rahim areperpendicular; the same applies to Karim. Not only this, the line joining Rahim and Karim’s houses madeangle ‘Pi/4’ radians with the line joining Jamal and Kamal’s houses. Intersection of both of the joining lines was known as “Danger Point”. Know why? Same thing happened with Rahim and Karim! Money had done the damage in their friendship and when the four meet, surprisingly it is in that “Danger Point”, there arise a long quarrel. And others feel really annoyed with them. So, you a good programmer and neighbor of them decided to discontinue this situation. To solve this main problem, first you have to solve a little problem: Find out the distance of Rahim or Karim’s house from the “Danger Point”.

Input

You know the two data only, the distance between Jamal and Kamal’s house, and one distance from “Danger Point” to Rahim or Karim’s house. And you know you will stop when you find both of them zero. That is they will stay together.

Output

Output is a single-lined single value (6 digits after the decimal point) representing distance from “Danger Point” to Rahim or Karim’s house (other one's without the given one) for correct input set and for incorrect input set just print "INCORRECTINFORMATION !!!".

Sample Input

333.25 101.154
50.50 10.10
10.10 50.50
0 0
 

Sample Output

212.827746
34.250766
INCORRECT INFORMATION !!!

Problem setter: Enamul Haque

Thanks to Derek Kisman for his alternate solution.

 “It takes two to make a quarrel - it's clear two is the lower limit here, but the upper limit is unknown to me :)”