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oracle_decode、case
1、case语法: case when 条件1 then 返回值1 when 条件2 then 返回值2 ... else 返回值N end;示例:declare i integer; str varchar2(20);begin i := 3; str := case when i =...
分类:数据库   时间:2014-08-03 12:38:35    阅读次数:300
BNUOJ 6378 无题I
无题ITime Limit: 10000msMemory Limit: 32768KBThis problem will be judged onHDU. Original ID:223464-bit integer IO format:%I64d Java class name:Main一天机器人...
分类:其他好文   时间:2014-08-03 10:09:55    阅读次数:350
Spiral Matrix II leetcode java
题目: Given an integer n, generate a square matrix filled with elements from 1 to n2 in spiral order.For example,Given n = 3,You should return the foll....
分类:编程语言   时间:2014-08-03 05:21:18    阅读次数:272
xtu DP Training C.炮兵阵地
炮兵阵地Time Limit: 2000msMemory Limit: 65536KBThis problem will be judged onPKU. Original ID:118564-bit integer IO format:%lld Java class name:Main司令部的将军...
分类:其他好文   时间:2014-08-02 23:23:05    阅读次数:302
xtu DP Training B. Collecting Bugs
B. Collecting BugsTime Limit: 10000msMemory Limit: 64000KB64-bit integer IO format:%lld Java class name:MainSpecial JudgeIvan is fond of collecting. U...
分类:其他好文   时间:2014-08-02 20:36:46    阅读次数:258
Java杂谈之各种类型转换
在写程序时,难免会遇到类型转换的问题,下面列出了各种类型的转换方法,我们要做的 只是会举一反三就可以了。 package JavaTestString; //包装类 //char----charcter //float---Float //int-----Integer //boolean-Boolean public class JavaTypeConvert { public sta...
分类:编程语言   时间:2014-08-02 15:40:13    阅读次数:258
POJ - 2886 Who Gets the Most Candies? (反素数+线段树)
Description N children are sitting in a circle to play a game. The children are numbered from 1 to N in clockwise order. Each of them has a card with a non-zero integer on it in his/her hand. Th...
分类:其他好文   时间:2014-08-02 15:37:33    阅读次数:259
String to Integer (atoi)
问题:将字符窜转换成数字分析:感觉题目不难,但是细节很多,容易想不到1.数字前面有空格 如s=“ 123456”2.数字前出现了不必要或多于的字符导致数字认证错误,输出0 如s=“ b1234” ,s=“ ++1233” , s=“ +-1121”3.数字中出现了不必要的字符,返回字符前的数字...
分类:其他好文   时间:2014-08-02 12:36:23    阅读次数:301
xtu summer individual 2 E - Double Profiles
Double ProfilesTime Limit: 3000msMemory Limit: 262144KBThis problem will be judged onCodeForces. Original ID:154C64-bit integer IO format:%I64d Java c...
分类:其他好文   时间:2014-08-02 12:34:23    阅读次数:197
xtu read problem training 2 B - In 7-bit
In 7-bitTime Limit: 2000msMemory Limit: 65536KBThis problem will be judged onZJU. Original ID:371364-bit integer IO format:%lld Java class name:MainVe...
分类:其他好文   时间:2014-08-02 12:22:13    阅读次数:230
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