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poj 2481 Cows 树状数组解法,详细解析。
Farmer John's cows have discovered that the clover growing along the ridge of the hill (which we can think of as a one-dimensional number line) in his field is particularly good. Farmer John has N cows (we number the cows from 1 to N). Each of Farmer Joh...
分类:编程语言   时间:2015-02-06 09:41:36    阅读次数:201
【SICP练习】4 练习1.8
如果对前面的内容理解透彻了,看到这个表达式就知道直接将y换成guess即可。博主写的函数如下:(define (improve guess x) (/(+ (* guess guess)) (* 2 guess)) 3))但是如果中写到这里就认为完成了那就错了,如果还是用书中的good-enough...
分类:其他好文   时间:2015-02-05 13:22:48    阅读次数:117
【SICP练习】3 练习1.7
练习1.7这道题回应了第15页所说的good-enough?并不是一个很好的检测方法。我们首先来按照题目要求用4组最大或最小的数来检测原文中的good-enough?(sqrt-iter 1.0 0.00000081) 0.0009;Value: 0.3125863108711088(sqrt-it...
分类:其他好文   时间:2015-02-05 12:55:20    阅读次数:148
hdu 4341 分组背包
http://acm.hdu.edu.cn/showproblem.php?pid=4341 Problem Description Homelesser likes playing Gold miners in class. He has to pay much attention to the teacher to avoid being noticed. So he...
分类:其他好文   时间:2015-02-05 11:22:52    阅读次数:163
Author Agreement
Dear Editor,We the undersigned declare that this manuscript entitled “文章标题” is original, has not been published before and is not currently being cons...
分类:其他好文   时间:2015-02-05 10:54:58    阅读次数:117
iOS指的是什么?
IoC就是Inversion of Control,控制反转。在Java开发中,IoC意味着将你设计好的类交给系统去控制,而不是在你的类内部控制。这称为控制反转。下面我们以几个例子来说明什么是IoC 假设我们要设计一个Girl和一个Boy类,其中Girl有kiss方法,即Girl想要Kiss一个Bo...
分类:移动开发   时间:2015-02-05 00:35:12    阅读次数:252
HDU 1847 Good Luck in CET-4 Everybody!(SG的简单运用)
HDU 1847 Good Luck in CET-4 Everybody!(SG的简单运用)...
分类:其他好文   时间:2015-02-04 20:27:53    阅读次数:148
收藏功能的写法
如图:HTML结构中会看到(全部商品页、详情页):收藏JS代码中(ajax.call)(common.js文件中):/* * * 添加商品到收藏夹 */function collect(goodsId){ Ajax.call('user.php?act=collect', 'id=' + good....
分类:其他好文   时间:2015-02-04 16:23:01    阅读次数:129
array_column php 函数 自定义版本 php_version<5.5
'Girl','name'=>'Judy'), array(0=>'Boy','name'=>'Jerry') ); echo ''; print_r(array_columns($testArray,'name')); print_r(array_column...
分类:Web程序   时间:2015-02-04 14:31:06    阅读次数:179
02-1 Reversing Linked List (PAT)
Given a constant K and a singly linked list L, you are supposed to reverse the links of every K elements on L. For example, given L being 1→2→3→4→5→6,...
分类:其他好文   时间:2015-02-03 22:44:12    阅读次数:236
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