\(考虑问题的转换,即把用n个球,分为r-l+2个部分,其中第1部分表示该区域的球值为l,第二部分表示该区域的球值为l+1\) \(......第r-l+2部分为不选该区域的球\) \(该问题等价于在n+1个空中插r-l+1块板,其中一个空可以插多个也可以不插\) \(方案数即为\binom{r-l+n+1}{n}\) \(但长度为1-n,因此要减去所有板都在1的情况,即为\binom{r-l+n+1}{n}-1\) \(当然,n,r,l很大,因此要用Lucas定理\) #include <bi…

//**************************************************************************************************** // // 求和为n的连续正整数序列 - C++ - by Chimomo // // 题目: 输入一个正整数n,输出全部和为n的连续正整数序列.比如:输入15,因为1+2+3+4+5=4+5+6=7+8=15,所以输出3个连续序列1-5.4-6和7-8. // // Answer: Supp…

彩色阴极射线管的剖面图: 1. 电子QIANG Three Electron guns (for red, green, and blue phosphor dots)2. 电子束 Electron beams3. 聚焦线圈 Focusing coils4. 偏向线圈 Deflection coils5. 阳极接点 Anode connection6. Mask for separating beams for red, green, and blue part of displayed ima…

转自:http://www.cnblogs.com/shangdawei/p/4760933.html 彩色阴极射线管的剖面图: 1. 电子QIANG Three Electron guns (for red, green, and blue phosphor dots)2. 电子束 Electron beams3. 聚焦线圈 Focusing coils4. 偏向线圈 Deflection coils5. 阳极接点 Anode connection6. Mask for separating…

by Umer Zeeshan Ijaz The purpose of this tutorial is to introduce students to the frequently used tools for NGS analysis as well as giving experience in writing one-liners. Copy the required files to your current directory, change directory (cd) to t…

文档首页 英文版文档 本作品采用知识共享署名-非商业性使用 3.0 未本地化版本许可协议进行许可. Node.js v0.10.18 手册 & 文档 索引 | 在单一页面中浏览 | JSON格式 目录 关于本文档 稳定度 JSON 输出 概述 全局对象 global process console 类: Buffer require() require.resolve() require.cache require.extensions __filename __dirname module e…

All DNA is composed of a series of nucleotides abbreviated as A, C, G, and T, for example: "ACGAATTCCG". When studying DNA, it is sometimes useful to identify repeated sequences within the DNA. Write a function to find all the 10-letter-long seq…

序列是指有序的队列,重点在"有序". 一.Python中序列的分类 Python中的序列主要以下几种类型: 3种基本序列类型(Basic Sequence Types):list.tuple.range 专门处理文本的附加序列类型(Text Sequence Types):str 专门处理二进制数据的附加序列类型(Binary Sequence Types): bytes.bytearray.memoryview 按照序列是否可被改变分类: 可变序列: list 不可变序列:tuple…

All DNA is composed of a series of nucleotides abbreviated as A, C, G, and T, for example: "ACGAATTCCG". When studying DNA, it is sometimes useful to identify repeated sequences within the DNA. Write a function to find all the 10-letter-long seq…

题目链接: http://codeforces.com/problemset/problem/272/D D. Dima and Two Sequences time limit per test2 secondsmemory limit per test256 megabytes 问题描述 Little Dima has two sequences of points with integer coordinates: sequence (a1, 1), (a2, 2), ..., (an, …