ACM,再见！

http://poj.org/problem?id=278DescriptionThe SUM problem can be formulated as follows: given four lists A, B, C, D of integer values, compute how many quadruplet (a, b, c, d ) ∈ A x B x C x D a

http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=3460MissileTime Limit: 2 Seconds      Memory Limit: 65536 KBYou control N missile launching towers. Every tower has enough mi

http://acm.hdu.edu.cn/showproblem.php?pid=3586Problem DescriptionIn the battlefield , an effective way to defeat enemies is to break their communication system.The information department t

http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=655Before the invention of book-printing, it was very hard to make a copy of a book. All the contents

http://acm.hdu.edu.cn/showproblem.php?pid=5144Problem DescriptionNPY is going to have a PE test.One of the test subjects is throwing the shot.The height of NPY is H meters.He can throw the s

http://codeforces.com/problemset/problem/24/EE. Berland collidertime limit per test1.5 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard

http://acm.hdu.edu.cn/showproblem.php?pid=4430

http://acm.hdu.edu.cn/showproblem.php?pid=4791Problem DescriptionAlice is providing print service, while the pricing doesn't seem to be reasonable, so people using her print service found so

http://acm.hdu.edu.cn/showproblem.php?pid=1496Problem DescriptionConsider equations having the following form: a*x1^2+b*x2^2+c*x3^2+d*x4^2=0a, b, c, d are integers from the interval [-

http://vjudge.net/contest/view.action?cid=51327#problem/I

http://acm.hdu.edu.cn/showproblem.php?pid=1316

http://vjudge.net/contest/view.action?cid=49353#problem/A During 2009 and 2010 ICPC world finals, the contest was webcasted via world wide web. Seeing this, some contest organizers from Ajobde

http://codeforces.com/problemset/problem/448/D

http://codeforces.com/problemset/problem/416/A

http://acm.hdu.edu.cn/showproblem.php?pid=2899Problem DescriptionNow, here is a fuction:  F(x) = 6 * x^7+8*x^6+7*x^3+5*x^2-y*x (0 Can you find the minimum value when x is between 0 a

http://ac.nbutoj.com/Problem/view.xhtml?id=1346问题描述老虎想和兔子玩, 所以老虎一直追着兔子, 兔子觉着老虎很笨, 就一直躲着老虎.有天, 兔子躲烦了. 停下来对老虎说 : "我最近对一个问题感到十分的困惑, 如果你能帮我解决我的问题, 我就不躲着你了."有一个方程, 如下所示.其中0 兔子想知道该方程在

http://acm.hdu.edu.cn/showproblem.php?pid=2199Problem DescriptionNow,given the equation 8*x^4 + 7*x^3 + 2*x^2 + 3*x + 6 == Y,can you find its solution between 0 and 100;Now please try your

http://acm.hdu.edu.cn/showproblem.php?pid=4737Problem DescriptionThere are n numbers in a array, as a0, a1 ... , an-1, and another number m. We define a function f(i, j) = ai|ai+1|ai+2| ...