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POJ 3264 Balanced Lineup
Balanced Lineup Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 33094   Accepted: 15552 Case Time Limit: 2000MS Description For the daily milking, Far...
分类:其他好文   时间:2014-07-18 17:09:01    阅读次数:225
hdu 1231
最大连续子序列Time Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 18297Accepted Submission(s): 8116Problem De...
分类:其他好文   时间:2014-07-18 16:31:06    阅读次数:172
全局唯一ID生成器(Snowflake ID组成)
SnowflakeID组成SnowflakeID有64bits长,由以下三部分组成:time—42bits,精确到ms,那就意味着其可以表示长达(2^42-1)/(1000360024*365)=139.5年,另外使用者可以自己定义一个开始纪元(epoch),然后用(当前时间-开始纪元)算出time...
分类:其他好文   时间:2014-07-18 08:13:24    阅读次数:7361
Python 修饰器
描述:对于函数foo,使用修饰器修饰,在执行foo函数的同时统计执行时间。这样其他函数都可以使用此修饰器得到运行时间。(有返回值和没有返回值的函数要用不同的修饰器似乎)(对于有返回值的函数,不确定用result存储实际函数执行结果再最终返回的方法是不是恰当) 1 import time 2 3 d....
分类:编程语言   时间:2014-07-17 23:19:37    阅读次数:284
[dhcpd]清除dhcp缓存
修改了dhcp的default-lease-time && max-lease-time清除缓存:rm /var/lib/dhcpd.leases~echo "" > /var/lib/dhcpd.leasesmax-lease-time :default-lease-time, 在默认租约时间的0...
分类:其他好文   时间:2014-07-17 23:04:23    阅读次数:458
hdu 3718 Different Division
Different Division Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 234    Accepted Submission(s): 90 Problem Description Now we wil...
分类:其他好文   时间:2014-07-17 21:16:26    阅读次数:283
UVA 10168 Summation of Four Primes(数论)
Summation of Four Primes Input: standard input Output: standard output Time Limit: 4 seconds Euler proved in one of his classic theorems that prime numbers are infinite in number. But can every nu...
分类:其他好文   时间:2014-07-17 21:05:16    阅读次数:299
HDUJ 1151 Air Raid 最大匹配
Air Raid Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 3035    Accepted Submission(s): 1972 Problem Description Consider a town where...
分类:其他好文   时间:2014-07-17 20:12:53    阅读次数:250
hdu 1052 Tian Ji -- The Horse Racing
Tian Ji -- The Horse Racing Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 17682    Accepted Submission(s): 5131 Problem Descriptio...
分类:其他好文   时间:2014-07-17 16:34:30    阅读次数:281
poj 1611 The Suspects(并查集)
The Suspects Time Limit: 1000MS   Memory Limit: 20000K Total Submissions: 21598   Accepted: 10461 Description Severe acute respiratory syndrome (SARS), an atypical pneumo...
分类:其他好文   时间:2014-07-17 16:33:57    阅读次数:195
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