标签:大数问题

[ACM_ZJUT_1382]计算N!(数组模拟超大数运算)

蓝飞 蓝飞 | 时间:2012-04-11, Wed | 9,730 views
编程算法 

计算N!

Time Limit:1000MS Memory Limit:32768K

Description

yaojian最近学了一个新的运算法则——阶乘,但他很懒,不想一步一步计算,所以他想让你来帮他编一个程序,能马上得到N的阶乘。

Input

输入包含若干行数据,每行都有一个整数N(0<=N<=200)。

Output

与输入相对应每行输出N的阶乘。

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[ACM_HDU_1297]Children’s Queue

蓝飞 蓝飞 | 时间:2012-04-01, Sun | 19,139 views
编程算法 

Children’s Queue

Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 5660 Accepted Submission(s): 1755

Description

There are many students in PHT School. One day, the headmaster whose name is PigHeader wanted all students stand in a line. He prescribed that girl can not be in single. In other words, either no girl in the queue or more than one girl stands side by side. The case n=4 (n is the number of children) is like
FFFF, FFFM, MFFF, FFMM, MFFM, MMFF, MMMM
Here F stands for a girl and M stands for a boy. The total number of queue satisfied the headmaster’s needs is 7. Can you make a program to find the total number of queue with n children?

Input

There are multiple cases in this problem and ended by the EOF. In each case, there is only one integer n means the number of children (1<=n<=1000)

Output

For each test case, there is only one integer means the number of queue satisfied the headmaster’s needs.

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