Perhaps someone has done this puzzle and can send a prolog solution to Mr Zhu. -- doug edmunds 19 Dec 2001 ----- Original Message ----- From: "Xinan Zhu" <MrXZ1@netscape.net> To: <dougedmunds@users.sourceforge.net> Sent: Tuesday, December 18, 2001 3:51 PM Subject: Logic Puzzles > Hi, I see you have a lot of solutions to puzzles her, but i still miss > one, maybe you are familiar with it. It is the crossing the river > problem. 4 people need to cross the river with only one flashlight and > the bridge can only hold 2 persons at a time, it takes person 1: 10 > minutes ,person2: 5, person3: 2 and person4: 1 minute and they need to > cross the bridge in 17 minutes. so i hope you can solve this in prolog! > i'm looking forward to the publishing online > > Xinan Zhu > >Received on Wed Dec 19 20:33:10 2001
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