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ACM求和
Let us consider sets of positive integers less than or equal to n. Note that all elements of a set are different. Also note that the order of elements...
分类:其他好文   时间:2015-07-31 23:28:21    阅读次数:238
Revealing that beginning will let you include foreseeable future high priced diesel-engined sign maintenance tasks
This sign is usually hooked up by means of get shafts towards differential which inturn get this axel in addition to small wheels. This differential i...
分类:其他好文   时间:2015-07-31 17:46:42    阅读次数:152
Swift实现一个简单的加载动画,以及动画的详解
一.组动画的创建首先创建一个组动画,也就是大小变化和透明度变化的动画。// 大小变化 let scaleAnimation = CAKeyframeAnimation(keyPath: "transform.scale") scaleAnimation.keyTimes = [0, 0.5, 1] scaleAnimation.values = [1,...
分类:编程语言   时间:2015-07-30 17:05:52    阅读次数:279
Swift入门(一)——基本语法
最近开始学习swift,把学习的过程和总结整理成一个系列,方便日后回顾总结。基本语法基础语法swift中每一行结束后不需要加分号,多个语句在同一行内需要用分好隔开 //表示注释,或者用/* ……*/常量常量是指定义之后无法修改值的量,比如设置一个最大尝试登陆的次数,它的值一旦被确定,就不应该在程序中被修改。swift中的常量用let表示,定义方法如下:let maxAttemptTime = 3...
分类:编程语言   时间:2015-07-29 01:02:08    阅读次数:144
【leetcode】204 - Count Primes
Description:Count the number of prime numbers less than a non-negative number,n.Hint:Let's start with aisPrimefunction. To determine if a number is pr...
分类:其他好文   时间:2015-07-29 00:34:37    阅读次数:138
shell的数值计算,小数计算
shell脚本中,可以进行数值计算,如加减乘除,通过expr、let、(())等完成,文章介绍:http://blog.csdn.net/longshenlmj/article/details/14166193 但是上面的运算只支持整数。 小数计算怎么办? shell中小数计算 通过bc,awk和nawk工具等完成 使用bc的代码如:click=`awk -F"\t" '$1==...
分类:系统相关   时间:2015-07-28 21:21:57    阅读次数:291
1061. Dating (20)
题目如下: Sherlock Holmes received a note with some strange strings: "Let's date! 3485djDkxh4hhGE 2984akDfkkkkggEdsb s&hgsfdk d&Hyscvnm". It took him only a minute to figure out that those strange st...
分类:其他好文   时间:2015-07-28 16:04:31    阅读次数:176
Swift:元组、typealias和泛型
一、元组 元组是多个值组合而成的复合值。元组中的值可以是任意类型,而且每一个元素的类型可以是不同的。 1. 直接给元组填充内容 let http404Error = (404, "Not Found")2. 给元组内容设置名称 let http200Status = (statusCode: 200, description: "OK")3. 访问元组 let code = http...
分类:编程语言   时间:2015-07-28 10:50:12    阅读次数:133
poj2409--Let it Bead(置换群+polya奇数)
题目链接:点击打开链接 题目大意:给出m种颜色的小球,现在要求用n个串成一个环,经过旋转翻转后,能形成多少个不同的环。 参考:点击打开链接 #include #include #include #include using namespace std ; #define LL __int64 LL gcd(LL a,LL b) { return b == 0 ? a ...
分类:其他好文   时间:2015-07-28 10:43:29    阅读次数:148
[LeetCode] Different Ways to Add Parentheses
Well, this problem seems to be a little tricky at first glance. However, the idea (taken from this link) is really simple. Let's take the equation 2*3...
分类:其他好文   时间:2015-07-28 00:37:18    阅读次数:122
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