Ac的幸福……
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2008-07-26 11:21
Beef McNuggets
Hubert Chen

Farmer Brown's cows are up in arms, having heard that McDonalds is considering the introduction of a new product: Beef McNuggets. The cows are trying to find any possible way to put such a product in a negative light.

One strategy the cows are pursuing is that of `inferior packaging'. ``Look,'' say the cows, ``if you have Beef McNuggets in boxes of 3, 6, and 10, you ca

 
2008-07-23 18:31
Raucous Rockers

You just inherited the rights to N (1 <= N <= 20) previously unreleased songs recorded by the popular group Raucous Rockers. You plan to release a set of M (1 <= M <= 20) compact disks with a selection of these songs. Each disk can hold a maximum of T (1 <= T <= 20) minutes of music, and a song can not overlap from one disk to another.

Since you are a classical music fan and hav

 
2008-07-22 22:14
Electric Fence
Don Piele

In this problem, `lattice points' in the plane are points with integer coordinates.

In order to contain his cows, Farmer John constructs a triangular electric fence by stringing a "hot" wire from the origin (0,0) to a lattice point [n,m] (0<=;n<32000, 0<m<32000), then to a lattice point on the positive x axis [p,0] (p>0), and then back to the ori

 
2008-07-21 23:20
A Game
IOI'96 - Day 1

Consider the following two-player game played with a sequence of N positive integers (2 <= N <= 100) laid onto a game board. Player 1 starts the game. The players move alternately by selecting a number from either the left or the right end of the sequence. That number is then deleted from the board, and its value is added to the score of the player who selected it. A player

 
2008-07-21 19:27
Magic Squares
IOI'96

Following the success of the magic cube, Mr. Rubik invented its planar version, called magic squares. This is a sheet composed of 8 equal-sized squares:

1234
8765

In this task we consider the version where each square has a diffe

 
     
 
留言板
 
21
呃,腿啊,你想看什么啊??那些都是日记,你就别看了……
2008-07-03 23:38
 
20
老五:你不能让我看看~~你今晚写什么了~~~~~~~~~o(∩_∩)o...神神秘秘的
2008-07-03 01:21
 
19
看来你真的除了接上就不写了啊~
2008-06-21 11:26
 
18
我的哪有很丑,是你不懂欣赏。貌似你的很漂亮一样...不过老实说你空间比你好看多了.o(∩_∩)o...哈哈
2008-06-11 12:51
 
17
不错,看好你啊!
2008-06-10 13:24
 
16
2008-06-10 12:40
 
15
happy ......remember......
2008-05-28 18:53
 
14
呵呵,被你鄙视了吧……
2008-05-20 22:57
 
13
哎,看着你些躺着的孩子,确实真的难受,突然感觉生命的脆弱,说不定哪天就突然没了,所以大家都好好珍惜,活在当下,开心的过每一天!
2008-05-13 22:02
 
12
睡觉前踩踩,呵呵睡觉了。。。
2008-05-11 00:12
 
 
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好强大呀!
 

向你学习....
 

呃呃呃呃呃....啥时候能赶上!!!
 

老五:看了你acm的东西突然发觉你好强!!!
 

嘿嘿,腿啊,你也知道牙都酸倒了啊……你也要暑假快乐了……
 
     
 
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