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UVA 11582 Colossal Fibonacci Numbers!(打表+快速幂)
Colossal Fibonacci Numbers! The i'th Fibonacci number f (i) is recursively defined in the following way: f (0) = 0 and f (1) = 1f (i+2) = f (i+1) + f (i)  for every i ≥ 0 Your task is to comput...
分类:其他好文   时间:2014-08-15 17:55:09    阅读次数:241
编程之美之电话号码对应英语单词
题目一:根据电话上字母和数字的对应关系,用一个有意义的单词来表述一个电话号码,如用computer表示26678837 题目二:反过来,给定一个电话号码,是否可以用一个单词来表示呢?怎样表示最快呢?显然不是所有的电话号码都可以对应到单词上去 首先来看看leetcode上一个类似的题目: Letter Combinations of a Phone Number   G...
分类:其他好文   时间:2014-08-15 16:11:50    阅读次数:257
【Leetcode长征系列】Single Number II
原题: Given an array of integers, every element appears three times except for one. Find that single one. Note: Your algorithm should have a linear runtime complexity. Could you implement it withou...
分类:其他好文   时间:2014-08-15 14:46:48    阅读次数:207
HDU4952:Number Transformation
Problem Description Teacher Mai has an integer x. He does the following operations k times. In the i-th operation, x becomes the least integer no less than x, which is the multiple of i. He w...
分类:其他好文   时间:2014-08-15 14:41:45    阅读次数:165
POJ 2777 Count Color (线段树+位运算)
题意很简单了,对一个区间有两种操作: 1. "C A B C" Color the board from segment A to segment B with color C. //A~B涂上颜色C 2. "P A B" Output the number of different colors painted between segment A and segment B (includ...
分类:其他好文   时间:2014-08-15 14:39:58    阅读次数:292
web中使用扫描枪
扫描枪实际上就是一输入设备,只不过它每次在输入的内容后面添加一个回车。因此在web中可以使用js监听回车事件。处理代码如下:jQuery(function() { jQuery(document).on('keydown','.card_number', function(e){ e = e|...
分类:Web程序   时间:2014-08-15 12:49:18    阅读次数:183
JS中NaN、null、Undefined区别
1、NaN(not a number)非数字、不和任何数字相等,包括自己本身,可以用isNaN()判断,当praseInt()和praseFloat()不能解析时返回NaN。NaN为number对象下的一个属性,number.NaN typeof(NaN) //return number Na...
分类:Web程序   时间:2014-08-15 12:31:48    阅读次数:241
HDU 4937 Lucky Number 【搜索】
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4937 搜索 机智的暴力...
分类:其他好文   时间:2014-08-15 10:46:38    阅读次数:186
HDU 4952 Number Transformation 打表规律
点击打开链接 Number Transformation Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 495    Accepted Submission(s): 248 Problem Descr...
分类:其他好文   时间:2014-08-15 10:46:08    阅读次数:200
UVA - 12036 Stable Grid
Description  Stable Grid  Consider a grid of size n x n where each cell contains a number. Let's call a grid stable if we canrearrange the numbers of each row so that every col...
分类:其他好文   时间:2014-08-15 10:42:58    阅读次数:190
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