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CodeForces 385C Bear and Prime Numbers 素数打表
第一眼看这道题目的时候觉得可能会很难也看不太懂,但是看了给出的Hint之后思路就十分清晰了Consider the first sample. Overall, the first sample has 3 queries.The first query l?=?2, r?=?11 comes. Y...
分类:其他好文   时间:2015-03-04 20:38:09    阅读次数:154
YT15-HDU-How many fibs(大数相加法)
Problem Description   Recall the definition of the Fibonacci numbers:  f1 := 1  f2 := 2  fn := fn-1 + fn-2 (n >= 3)  Given two numbers a and b, calculate how many Fibonacci numbers are in the ...
分类:其他好文   时间:2015-03-04 16:56:45    阅读次数:126
Power of Cryptography
DescriptionCurrent work in cryptography involves (among other things) large prime numbers and computing powers of numbers among these primes. Work in ...
分类:其他好文   时间:2015-03-04 14:19:10    阅读次数:135
[LintCode]k Sum
Given n distinct positive integers, integer k (k <= n) and a number target.Find k numbers where sum is target. Calculate how many solutions there are?...
分类:其他好文   时间:2015-03-04 12:59:04    阅读次数:188
Dynamics CRM 2015 New Feature (4): Calculate Field & Rollup Field
Calculate Field & Rollup Field 可以说是2个比较给力的Feature,随着Dynamics CRM版本的不断更新,这样激动人心的feature可是一个接一个的冒出来。就Calculate Field和Rollup Field来说,之前实现这样的功能都需要开发人员参与,但是现在只需要简单的手工配置就可以简单完成。...
分类:其他好文   时间:2015-03-03 16:47:26    阅读次数:188
小规模素数表的构造方法及相关
一、判断素数 可以写一个判断素数的谓词函数,即从2开始枚举到sqrt(x)(包括)。但这里参数x不能过大,过大就会因为i*i乘积过大溢出。 Code: {CSDN:CODE:609701} 后面的内容都是基于这个函数。 二、构造素数表 //构造素数表 int cnt=0; int prime[n+1]; for(int i=2;i<=n;++i) if(is_prime(i...
分类:其他好文   时间:2015-03-01 11:55:56    阅读次数:144
CO11N报 ck466错误
在报工时中,把所有数据都填好后,保存时报错,如下:错误提示的完整内容:CK466 - No price could be determined for internal activity &1 &2 - CK 466DiagnosisThe system could not calculate a ...
分类:其他好文   时间:2015-03-01 08:52:52    阅读次数:361
1015. Reversible Primes
A reversible prime in any number system is a prime whose "reverse" in that number system is also a prime. For example in the decimal system 73 is a reversible prime because its reverse 37 is also a pr...
分类:其他好文   时间:2015-02-28 21:46:29    阅读次数:187
A1081. Rational Sum (20)
Given N rational numbers in the form "numerator/denominator", you are supposed to calculate their sum.Input Specification:Each input file contains one...
分类:其他好文   时间:2015-02-28 20:15:53    阅读次数:129
抓其根本(hdu2710 Max Factor 素数 最大公约数 最小公倍数.....)
素数判断:一、根据素数定义,该数除了1和它本身以外不再有其他的因数。详见代码。1 int prime()2 {3 for (int i=2; i*i 2 #include 3 #include 4 5 using namespace std; 6 7 int hash[20050];...
分类:其他好文   时间:2015-02-28 18:08:32    阅读次数:206
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