help me...:(

[Manijeh]

Hi

I can not solve the following problem and I can not solve it. Please help me ... Thanks...

http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=3047

[cnoeval]

I thought the cut & pasting of homework was lazy. Now there seems to be a rash of students just posting a link to their assignments.

Show some effort on this by at least starting it, explain specifically where you're stuck and what you've tried... Then we can provide some help.