HDU-1134 卡特兰数+java大数模板

【HDU-1134 卡特兰数+java大数模板】的更多相关文章

HDU-1134 卡特兰数+java大数模板

题意: 给你一个n,然后1,2,3...2n-1,2n围一圈,让每个数都能用一条线配对并且线与线之间不能交叉,问有几种方法数. 思路: 1 可以和2,4,6...连接.假如一共有8个数,1和2连接剩下的3,4,5,6,7,8就相当于 import java.math.*; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner in1 = new Sca…

hdu 1023 卡特兰数《大数》java

Train Problem II Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 5372 Accepted Submission(s): 2911 Problem Description As we all know the Train Problem I, the boss of the Ignatius Train Stati…

HDU 1134 卡特兰数大数乘法除法

Problem Description This is a small but ancient game. You are supposed to write down the numbers 1, 2, 3, ... , 2n - 1, 2n consecutively in clockwise order on the ground to form a circle, and then, to draw some straight line segments to connect them…

Buy the Ticket HDU 1133 卡特兰数应用+Java大数

Problem Description The "Harry Potter and the Goblet of Fire" will be on show in the next few days. As a crazy fan of Harry Potter, you will go to the cinema and have the first sight, won’t you? Suppose the cinema only has one ticket-office and…

hdu 1130，hdu 1131(卡特兰数,大数)

How Many Trees? Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 3382 Accepted Submission(s): 1960 Problem Description A binary search tree is a binary tree with root k such that any node v re…

2014年百度之星程序设计大赛 - 初赛（第一轮） hdu Grids (卡特兰数大数除法取余扩展gcd)

题目链接分析:打表以后就能发现时卡特兰数, 但是有除法取余. f[i] = f[i-1]*(4*i - 2)/(i+1); 看了一下网上的题解,照着题解写了下面的代码,不过还是不明白,为什么用扩展gcd, 不是用逆元吗.. 网上还有别人的解释,没看懂,贴一下: (a / b) % m = ( a % (m*b)) / b 笔者注:鉴于ACM题目特别喜欢M=1000000007,为质数: 当gcd(b,m) = 1, 有性质: (a/b)%m = (a*b^-1)%m, 其中b^-1是b模m的逆…

【Java】-BigInteger大数类的使用【超强Java大数模板总结】

Scanner cin = new Scanner(new BufferedInputStream(System.in)); 这样定义Scanner类的对象读入数据可能会快一些! 参考这个博客继续补充内容:http://blog.csdn.net/lmyclever/article/details/6408980 1. 单元变量常用大数操作: import java.util.Scanner; import java.math.*; public class Main{ public stati…