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poj1002 487-3279
DescriptionBusinesses like to have memorable telephone numbers. One way to make a telephone number memorable is to have it spell a memorable word or p...
分类:其他好文   时间:2014-08-22 00:19:05    阅读次数:195
非数值(Not a Number)NaN的解释
它是一个特殊的数值。它用于表示一个本来要返回数值的操作数未返回数值的情况。在ECMAScript中,任何数值除以0会返回NaN,而不会导致错误,不会停止代码的执行,因此不会影响其他代码的执行。NaN本身两个不同寻常的特点:1.任何涉及NaN的操作都会返回NaN,这个特点在多步计算中有可能导致问题。2...
分类:其他好文   时间:2014-08-22 00:12:55    阅读次数:304
Swift 函数新特性
特性一:函数可以穿出不固定的同一种类型的参数(参数的个数不固定)example:“func sumOf(numbers: Int...) -> Int { var sum = 0 for number in numbers { sum += number } r...
分类:编程语言   时间:2014-08-22 00:06:35    阅读次数:301
Hdu1394Minimum Inversion Number线段树
这个网上一搜一大堆,就是先求一个,其余的for一遍搞出来。#include#include#define max 5555int sum[max * 4];int min(int a, int b){ if (a>b) return b; else return a;}void fu...
分类:其他好文   时间:2014-08-22 00:04:25    阅读次数:264
Edit Distance
leetcode的题目Given two wordsword1andword2, find the minimum number of steps required to convertword1toword2. (each operation is counted as 1 step.)You h...
分类:其他好文   时间:2014-08-21 22:29:54    阅读次数:279
poj3422--Kaka's Matrix Travels(拆点,最大费用)
Kaka's Matrix Travels Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 7802   Accepted: 3138 Description On an N × N chessboard with a non-negative number in ...
分类:其他好文   时间:2014-08-21 21:15:18    阅读次数:300
【Leetcode长征系列】Letter Combinations of a Phone Number
原题: Given a digit string, return all possible letter combinations that the number could represent. A mapping of digit to letters (just like on the telephone buttons) is given below. Input...
分类:其他好文   时间:2014-08-21 19:30:24    阅读次数:225
Drawable与Bitmap(转)
Drawable以下这个是测试加载1000个Drawable对象的代码:public class Main extends Activity{ int number = 1000; Drawable[] array; @Override public void onCrea...
分类:其他好文   时间:2014-08-21 19:14:14    阅读次数:187
Prime Cuts(poj1595)
/*Prime Cuts Description A prime number is a counting number (1, 2, 3, ...) that is evenly divisible only by 1 and itself. In this problem you are to write a program that will cut some number of pri...
分类:其他好文   时间:2014-08-21 17:14:24    阅读次数:283
Oracle 常用SQL
1.创建表CREATE TABLE emp_test (ID NUMBER(5,2) PRIMARY KEY, NAME VARCHAR2(20) UNIQUE, BIRTHDAY DATE);--修改表名ALTER TABLE emp_test RENAME TO TEST1;--修改表列名Alt...
分类:数据库   时间:2014-08-21 16:30:24    阅读次数:336
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