一、概念 建立时间和保持时间都是针对触发器的特性说的。 时序图如下:建立时间(Tsu:set
up time)
是指在触发器的时钟信号上升沿到来以前,数据稳定不变的时间,如果建立时间不够,数据将不能在这个时钟上升沿被稳定的打入触发器,Tsu就是指这个最小的稳定时间。保持时间(Th:hold...
分类:
其他好文 时间:
2014-05-14 04:04:58
阅读次数:
359
Super Star
Time Limit: 1000MS
Memory Limit: 65536K
Total Submissions: 3198
Accepted: 853
Special Judge
Description
During a voyage of the starship Hakodate-maru (se...
分类:
其他好文 时间:
2014-05-13 23:49:40
阅读次数:
491
??
Hurry Up
Accepted : 88
Submit : 345
Time Limit : 1000 MS
Memory Limit : 65536 KB
Problem Description
GG is some what afraid of his MM. Once his MM a...
分类:
其他好文 时间:
2014-05-13 09:13:47
阅读次数:
355
Robot Motion
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 6079 Accepted Submission(s): 2844
Problem Description
A robot h...
分类:
其他好文 时间:
2014-05-13 08:47:09
阅读次数:
265
本文为senlie原创,转载请保留此地址:http://blog.csdn.net/zhengsenlie
Best Time to Buy and Sell Stock
Total Accepted: 13234 Total
Submissions: 43145
Say you have an array for which the ith ele...
分类:
其他好文 时间:
2014-05-13 07:30:13
阅读次数:
276
One Person Game
Time Limit: 1 Second Memory Limit: 32768 KB Special Judge
There is a very simple and interesting one-person game. You have 3 dice, namely Die1, Die2 and Die3. Die1 ha...
分类:
其他好文 时间:
2014-05-13 06:06:00
阅读次数:
357
Count the string
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 4239 Accepted Submission(s): 1977
Problem Description
It is wel...
分类:
其他好文 时间:
2014-05-13 00:14:55
阅读次数:
357
Run Away
Time Limit: 3000MS
Memory Limit: 65536K
Total Submissions: 5632
Accepted: 1729
Description
One of the traps we will encounter in the Pyramid is located in the...
分类:
其他好文 时间:
2014-05-12 22:51:43
阅读次数:
496
先执行:rubyscript/generatemigrationadd_change_flag_to_userschange_flag:Boolean生成时间序列文件:db/migrate/20131016034104_add_changeflag_to_users.rb内容:classAddchangeflagToUsers<ActiveRecord::Migrationdefself.upadd_column:users,:change_flag,:booleanen..
分类:
其他好文 时间:
2014-05-12 03:10:04
阅读次数:
368
题目链接:http://poj.org/problem?id=3468
A Simple Problem with Integers
Time Limit: 5000MS
Memory Limit: 131072K
Total Submissions: 56005
Accepted: 16903
Case Time Limit...
分类:
其他好文 时间:
2014-05-11 18:40:16
阅读次数:
301