一个ACM彩笔

摘要： 公式：a1 = n * a0 / (n + 1) + an+1 / (n + 1) + ∑∑ci题目： Simple calculations 1 Normal 1 8 5 1996-08-26T09:19:00Z 1996-08-26T18:32:00Z 1 95 544 4 1 668 9.2812 Simple calculations The ProblemThere is a sequence ofn+2 elements a0, a1,…, an+1(n <= 3000; -1000 <=ai1000). It is known th... 阅读全文

摘要： 很简单的题～题目：Problem G Saman Arash Rahimi 3 81 2005-11-07T20:17:00Z 2005-11-07T20:17:00Z 1 275 1569 Home 13 3 1841 11.5606 Clean 6 pt 2 2 false false false MicrosoftInternetExplorer4 Problem GBig ChocolateMohammad has recently visited Switzerland. A... 阅读全文

摘要： 第一次TLE了，想到了取对数的方法，但是纠结 2^x-1 后面的 -1 一直保留所以计算超时了。后来实验了一两次，发现 x = 4 的时候 3! = 6 < 2^x-1 < 4!=15 跨度大于 1 了，以后更大，所以 -1 完全可以略去。题目： Problem B: Factstone BenchmarkAmtel has announced that it will release a 128-bit computer chip by 2010, a 256-bit computer by 2020, and so on, continuing its strategy of 阅读全文

摘要： 数据用long long题目： Problem J - Regionals 2001 Warmup Contest Shahriar Manzoor Administrator 66 234 2001-07-19T02:33:00Z 2000-12-04T12:45:00Z 2001-08-29T15:05:00Z 2 254 1448 CSE, BUET 12 2 1778 9.2720 0 0 Problem J(2/3/4)-D Sqr/Rects/Cubes/Boxes?Input: st... 阅读全文

摘要： 忘了打空行了，做的时候想起了高中的数学老师 TAT题目： Problem BProblem BQuotient PolynomialTime Limit2 SecondsA polynomial of degree n can be expressed asIf k is any integer then we can write:Here q(x) is called the quotient polynomial of p(x) of degree (n-1) and r is any integer which is called the remainder.For example, i 阅读全文

摘要： 写的忘了一个问题，整除和余数。题目： Searching for Nessy Searching for Nessy The Loch Ness Monsteris a mysterious and unidentified animal said to inhabit Loch Ness, a large deep freshwaterloch near the cityof Inverness in northern Scotland. Nessie is usually categorized as a type oflake monster.http://en.wikipedia.or 阅读全文

摘要： 刚开始有点被书“误导”了，上来就想用一下公式，结果连简单的排列组合都忘了。数据结果很大要用long long题目： How Many Points of Intersection?We have two rows. There are a dots on the top row and b dots on the bottom row. We draw line segments connecting every dot on the top row with every dot on the bottom row. The dots are arranged in such a way t. 阅读全文

摘要： 题目不太好懂，看了别人的翻译。大概意思就是，球形表面积增加量比上原表面积，其实就是n/4*100%题目： Administrator SHAHRIAR MANZOOR 180 1629 2002-10-25T13:01:00Z 2001-06-30T12:55:00Z 2003-01-10T18:14:00Z 2 337 1922 BUET 16 3 2360 9.2720 Print BestFit MicrosoftInternetExplorer4 Clean Problem HThe Land of JusticeInput: s... 阅读全文

摘要： 找规律可以发现一个数列 (0),1,2,4,6,9,12,16,20....分别是1步，2步，3步，4步....的最大距离。然后把x-y锁定到一个区间就行了。注意距离为0的时候走0步。题目： Steps StepsOne steps through integer points of the straight line. The length of a step must be nonnegative and can be by one bigger than, equal to, or by one smaller than the length of the previous step.W 阅读全文

摘要： 注意：1. 判定成功的时候不要减去滑下的距离2.上升距离为负时要保持为0题目： The SnailA snail is at the bottom of a 6-foot well and wants to climb to the top. The snail can climb 3 feet while the sun is up, but slides down 1 foot at night while sleeping. The snail has a fatigue factor of 10%, which means that on each successive day th. 阅读全文