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POJ 3356 AGTC.
~~~~ 题目意思问将序列 x 转化成序列 y 需要多少步操作。 题目链接:http://poj.org/problem?id=3356 ~~~~ 我的想法先求的两条序列的最长公共子序列。余下不相同或者是缺少的部分做相应的处理就好。 最长公共子序列都会吧,于是···· #include #include #include #include #define N 1000+10 using...
分类:其他好文   时间:2014-08-11 12:02:32    阅读次数:238
ZOJ2599:Graduated Lexicographical Ordering(非常经典的数位DP)
Consider integer numbers from 1 to n. Let us call the sum of digits of an integer number its weight. Denote the weight of the number x as w(x). Now let us order the numbers using so called graduated ...
分类:其他好文   时间:2014-08-10 18:47:20    阅读次数:406
UVA 11355 Cool Points
Cool Points We have a circle of radius R and several line segments situated within the circumference of this circle. Let’s define a cool point to be a...
分类:其他好文   时间:2014-08-10 12:37:10    阅读次数:245
poj 1845(等比数列前n项和及快速幂)
Sumdiv Time Limit: 1000MS   Memory Limit: 30000K Total Submissions: 13959   Accepted: 3433 Description Consider two natural numbers A and B. Let S be the sum of all natur...
分类:其他好文   时间:2014-08-09 11:43:07    阅读次数:226
HDU4927:Series 1(JAVA大数)
Problem Description Let A be an integral series {A1, A2, . . . , An}. The zero-order series of A is A itself. The first-order series of A is {B1, B2, . . . , Bn-1},where Bi = Ai+1 - Ai. Th...
分类:编程语言   时间:2014-08-08 16:12:48    阅读次数:200
shell变量详解
1 shell变量基础shell变量是一种很“弱”的变量,默认情况下,一个变量保存一个串,shell不关心这个串是什么含义。所以若要进行数学运算,必须使用一些命令例如let、declare、expr、双括号等。shell变量可分为两类:局部变量和环境变量。局部变量只在创建它们的shell中可用。而环...
分类:其他好文   时间:2014-08-08 15:48:06    阅读次数:329
What are move semantics?
I find it easiest to understand move semantics with example code. Let's start with a very simple string class which only holds a pointer to a heap-all...
分类:其他好文   时间:2014-08-08 15:39:06    阅读次数:281
B - Phone List
Description Given a list of phone numbers, determine if it is consistent in the sense that no number is the prefix of another. Let’s say the phone catalogue listed these numbers: 1. Emergency 911 ...
分类:其他好文   时间:2014-08-08 12:49:16    阅读次数:187
hdu 4927 Series 1
Series 1 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others) Total Submission(s): 596    Accepted Submission(s): 214 Problem Description Let A be an integ...
分类:其他好文   时间:2014-08-08 09:39:45    阅读次数:299
HDU 4927 Series 1
Problem Description Let A be an integral series {A1, A2, . . . , An}. The zero-order series of A is A itself. The first-order series of A is {B1, B2, . . . , Bn-1},where Bi = Ai+1 - Ai. The ...
分类:其他好文   时间:2014-08-07 18:59:40    阅读次数:248
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