题目: Let's play a card game called Gap. You have 28 cards labeled with two-digit numbers. The first digit (from 1 to 4) represents the suit of the card, and the second digit (from 1 to 7) represents the value of the card. First, you shu2e the cards an…

环境:Oracle 11.2.0.4 DG 故障现象: 客户在备库告警日志中发现GAP sequence提示信息: Mon Nov 21 09:53:29 2016 Media Recovery Waiting for thread 1 sequence 12034 Fetching gap sequence in thread 1, gap sequence 12034-12078 Mon Nov 21 09:55:20 2016 FAL[client]: Failed to request…

Nitish Shirish Keskar, Dheevatsa Mudigere, Jorge Nocedal, Mikhail Smelyanskiy, Ping Tak Peter Tang Northwestern University & Intel code: https://github.com/keskarnitish/large-batch-training * SGD及其变种在batch size增大的时候会有泛化能力的明显下降 generalization drop/deg…

故障现象:data guard归档出现gap,悲剧的是丢失的归档在主库上被rman备份时删除了,丢失的归档大约有20几个,数据库大小约2T,如果重建DG将非常耗时间,因此决定利用增量备份的方式恢复DG,主要步骤如下:1.备份备库spfile文件SQL> create pfile='/home/ora/pfileRdg.ora' from spfile; 2.查看当前备库scnSQL> select to_char(current_scn) from v$database; TO_CHAR(CU…

个人大总结:(先后顺序) 1.GAP协议定义多个角色(其中就有中心设备［GATT客户端］(唯一)叫主设备||和外围设备［GATT服务端端］(多个)也叫从设备). 2.先经过GAP协议,再有GATT协议连接(GATT协议定义了service和 Characteristic 两个东西在进行通信.)                    总结:GATT连接之前,必须先经过GAP协议.                 3.中心设备和外设需要双向通信的话,唯一的方式就是建立 GATT 连接.(所有的蓝牙应…

Gap Time Limit: 20000/10000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 690    Accepted Submission(s): 380 Problem Description Let's play a card game called Gap.  You have 28 cards labeled with two-digit numbers…

Maximum Gap Given an unsorted array, find the maximum difference between the successive elements in its sorted form. Try to solve it in linear time/space. Return 0 if the array contains less than 2 elements. You may assume all elements in the array a…

Given an unsorted array, find the maximum difference between the successive elements in its sorted form. Try to solve it in linear time/space. Return 0 if the array contains less than 2 elements. You may assume all elements in the array are non-negat…

本文轉載自無雙的小寶的博客:http://www.cnblogs.com/sopost/archive/2010/09/11/2190085.html 有時候因為網路或備份故障等原因,主機所產生的歸檔日誌無法傳到備機上,這個時候備機就產生了gap.對於這種情況,應該如何解決? 需要注意的是,一旦產生gap,即使gap之後的archive log能正常傳到standby庫中,standby庫並不會對後繼傳來的日誌檔做apply.只有通過對standby做recover把從產生gap的第一個檔到最新…

Given an unsorted array, find the maximum difference between the successive elements in its sorted form. Return 0 if the array contains less than 2 elements. Notice You may assume all elements in the array are non-negative integers and fit in the 32-…