提比的强行AC

Farey SequenceTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 11545 Accepted: 4488DescriptionThe Farey Sequence Fn for any integer n with n >= 2 is th

Happy 2006Time Limit: 3000MS Memory Limit: 65536KTotal Submissions: 10084 Accepted: 3460DescriptionTwo positive integers are said to be relatively prime to each

跳蚤Time Limit: 1000MS Memory Limit: 10000KTotal Submissions: 8723 Accepted: 2601DescriptionZ城市居住着很多只跳蚤。在Z城市周六生活频道有一个娱乐节目。一只跳蚤将被请上一个高空钢丝的正中央。钢丝很长，可以看作是无限长。节目主持人会给

Sky CodeTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 1705 Accepted: 528DescriptionStancu likes space travels but he is a poor software developer an

Sky CodeTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 1720 Accepted: 532DescriptionStancu likes space travels but he is a poor software developer an

RectanglesTime Limit: 2000MS Memory Limit: 65536KTotal Submissions: 3672 Accepted: 1052DescriptionYou are developing a software for painting rectangles on the s

Mike and Foamtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputMike is a bartender at Rico's bar. At Rico's,

Mike and Frogtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputMike has a frog and a flower. His frog is name

BellTime Limit: 6000/3000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 600    Accepted Submission(s): 252Problem DescriptionWhat? MMM is learning C

Examining the RoomsTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1205    Accepted Submission(s): 727Problem DescriptionA murde

Counting Binary TreesTime Limit: 6000/3000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 660    Accepted Submission(s): 213Problem DescriptionThere

M斐波那契数列Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 65535/32768 K (Java/Others)Total Submission(s): 1990    Accepted Submission(s): 570Problem DescriptionM斐波那契数列F[n]是一种整数数列，

SETITime Limit: 1000MS Memory Limit: 30000KTotal Submissions: 1698 Accepted: 1056DescriptionFor some years, quite a lot of work has been put into listening to e

Widget FactoryTime Limit: 7000MS Memory Limit: 65536KTotal Submissions: 5000 Accepted: 1721DescriptionThe widget factory produces several different kinds of wid

Flip GameTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 34598 Accepted: 15136DescriptionFlip game is played on a rectangular 4x4 field with two-sided

题意：给你（x1+x2+....+xk）^n的式子，然后给定所有x的次方，问这个它的系数是多少。思路：组合数c(n,k)，不用多说。AC代码如下：#include#includeusing namespace std;int n,m,c[20][20],num[20],sum[20],ans;int main(){ int i,j,k; for(i=0;i<=

Square rootThe ProblemYou are to determinate X by given Y, from expression The InputThe first line is the number of test cases, followed by a blank line.Each test case of the input c

Visible Lattice PointsTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 5239 Accepted: 3049DescriptionA lattice point (x, y) in the first quadrant (x 

FibonacciTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 8570 Accepted: 6093DescriptionIn the Fibonacci integer sequence, F0 = 0, F1 = 1, and Fn = F

BiorhythmsTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 110898 Accepted: 34511DescriptionSome people believe that there are three cycles in a person

Prime PathTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 10483 Accepted: 5992DescriptionThe ministers of the cabinet were quite upset by the message fr

Jzzhu and Sequencestime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputJzzhu has invented a kind of sequences,

So Easy!Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2089    Accepted Submission(s): 646Problem Description　　A sequence Sn is

Carmichael NumbersAn important topic nowadays in computer science is cryptography. Some people even think that cryptography is the only important field in computer science, and that life would not

Fermat vs. PythagorasBackgroundComputer generated and assisted proofs and verification occupy a small niche in the realm of Computer Science. The first proof of the four-color problem was co

覆盖的面积Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 3841    Accepted Submission(s): 1887Problem Description给定平面上若干矩形,求出被这些矩形覆盖

Base -2 Input: Standard InputOutput: Standard Output The creator of the universe works in mysterious ways. Buthe uses a base ten counting system and likes round numbers.

Minimum Sum LCMLCM (Least Common Multiple) of a set of integers is defined as the minimum number, which is a multiple of all integers of that set. It is interesting to note that any positi

Send a TableInput: Standard InputOutput: Standard Output When participating in programming contests, you sometimes face the following problem: You know how to calcutale the output for the give

Apart from the novice programmers, all others know that you can’t exactly represent numbers raised to some high power. For example, the C function pow(125456, 455) can be represented in double data ty

Fox And Jumpingtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputFox Ciel is playing a game. In this game th

Bear and Polynomialstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputLimak is a little polar bear. He doesn