This is a puzzle question .... The warden meets with 23 new prisoners when they arrive. He tells them, "You may meet today and plan a strategy. But after today, you will be in isolated cells and will have no communication with one another. "In the prison is a switch room, which contains two light switches labeled A and B, each of which can be in either the 'on' or the 'off' position. I am not telling you their present positions. The switches are not connected to anything. "After today, from time to time whenever I feel so inclined, I will select one prisoner at random and escort him to the switch room. This prisoner will select one of the two switches and reverse its position. He must move one, but only one of the switches. He can't move both but he can't move none either. Then he'll be led back to his cell. "No one else will enter the switch room until I lead the next prisoner there, and he'll be instructed to do the same thing. I'm going to choose prisoners at random. I may choose the same guy three times in a row, or I may jump around and come back. "But, given enough time, everyone will eventually visit the switch room as many times as everyone else. At any time anyone of you may declare to me, 'We have all visited the switch room.' and be 100% sure. "If it is true, then you will all be set free. If it is false, and somebody has not yet visited the switch room, you will be fed to the alligators." What is the strategy they come up with so that they can be free?
6 14165two MIT math grads bump into each other at Fairway on the upper west side. they haven't seen each other in over 20 years. the first grad says to the second: "how have you been?" second: "great! i got married and i have three daughters now" first: "really? how old are they?" second: "well, the product of their ages is 72, and the sum of their ages is the same as the number on that building over there.." first: "right, ok.. oh wait.. hmm, i still don't know" second: "oh sorry, the oldest one just started to play the piano" first: "wonderful! my oldest is the same age!" problem: how old are the daughters?
2 6129What is the maximum amount of memory any single process on Windows can address? Is this different than the maximum virtual memory for the system? How would this affect a system design?
2 9896Describe the difference between Interface-oriented, Object-oriented and Aspect-oriented programming
1 11553When you?re running a component within ASP.NET, what process is it running within on Windows XP? Windows 2000? Windows 2003?
2 6736Post New Programming Languages AllOther Questions
Colors specified with the notation
why we use abstract word in abstract window toolkit in java language.
what is the difference between Windows application and Unix application?
Can we write a method in JSP.If so how?
What is web.configuration? how is it work? & wht is use this?
can any one suggestion me present which course(except java,.net) has huge demand in the market?
What is BASIS
Given an array of size n. It contains numbers in the range 1 to n. Find the numbers which aren?t present.
what is technical system, business system, logical system in sap pi7.0
Delta 5 weight scale not connect with oracle application what i can do?
When we delete logfiles such as screenshots how does it affect the ldf file? Ive seen huge change while adding screenshots in the ldf file but a very minor one deleting them.Please Explain
What is abstract Method i want the exact definition and is there any possibility to declare class as abstract without any abstract methods in that class?If it is possible then tell me why and how?
< DL Compact > tag is used for
what is diff bet ref variable & instance of class
how do we provide security for web services