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MySQL锁
MySQL锁不同的存储引擎支持不同的锁:MyISAM和MEMORY采用的是表级锁BDB采用的是页面锁,也支持表级锁InnoDB默认采用行级锁,也支持表级锁3种锁类型:表级锁:开销小,加锁快;不会出现死锁;锁定粒度大,发生锁冲突的概率最高,并发度最低行级锁:开销大,加锁慢,会出现死锁,锁定粒度最小,发...
分类:数据库   时间:2014-06-15 22:14:44    阅读次数:373
hdu 1573 X问题 (非互质的中国剩余定理)
X问题Time Limit: 1000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2980Accepted Submission(s): 942Problem Descript...
分类:其他好文   时间:2014-06-15 20:41:19    阅读次数:211
hdu 3579 Hello Kiki (中国剩余定理)
Hello KikiTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1943Accepted Submission(s): 693Problem D...
分类:其他好文   时间:2014-06-15 20:32:59    阅读次数:112
poj 2247 Humble Numbers
Humble Numbers Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 9396   Accepted: 4417 Description A number whose only prime factors are 2,3,5 or 7 is called a...
分类:其他好文   时间:2014-06-15 19:04:15    阅读次数:159
ACdream原创群赛(11)の风神日华神专场 C.神奇的%系列一
神奇的%系列一 Time Limit: 6000/3000 MS (Java/Others)      Memory Limit: 65536/32768 KB (Java/Others) Problem Description 在计算机的世界里,%不是百分比,而是除法取余哟! 比如:   4 % 2 = 0   5 % 3 = 2 给你 2 其中:1 ...
分类:其他好文   时间:2014-06-15 19:02:22    阅读次数:220
杭电 3711 Binary Number
Binary Number Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 1287    Accepted Submission(s): 807 Problem Description For 2 non-negativ...
分类:其他好文   时间:2014-06-15 18:17:35    阅读次数:204
hdu1003
Max SumTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 138410Accepted Submission(s): 32144Problem ...
分类:其他好文   时间:2014-06-14 20:43:40    阅读次数:243
poj1573 Robot Motion
题目链接: http://poj.org/problem?id=1573 题目: Robot Motion Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 10202   Accepted: 4971 Description A robot h...
分类:其他好文   时间:2014-06-14 07:44:51    阅读次数:244
杭电 1711 Number Sequence
Number Sequence Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 10239    Accepted Submission(s): 4656 Problem Description Given two se...
分类:其他好文   时间:2014-06-14 00:22:38    阅读次数:243
hdu3669之二维斜率DP
Cross the Wall Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 327680/327680 K (Java/Others) Total Submission(s): 4176    Accepted Submission(s): 748 Problem Description “Across th...
分类:其他好文   时间:2014-06-13 20:43:09    阅读次数:280
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