//maxleftsum, Maxrightsum, and maxleftrightsum are the maximum subsequence andmaxsubsum int = 0;Maxsubsum = maxleftsum > maxrightsum? Maxleftsum:maxrightsum;Maxsubsum = maxsubsum > maxleftrightsum? Maxsubsum:maxleftrightsum;41Maxsubsum return;43}2.3.3. Algorithm AnalysisSet T (n) to indicate the elapsed time of the input sequence length n, if N=1, which is only one element, then left==right, so there is t (1) = 1. For n>1, the program needs to run two recursive calls and two for loops. Each recu
MBR (Master Boot Record)1. Master boot record, traditional partitioning mechanism, applied to most PC devices using BIOS2. MBR supports 32-bit and 64-bit systems.3, MBR supports a limited number of partitions.4, MBR only support less than 2T of hard disk, more than 2T of hard disk will only use 2T space (there is a third-party solution).5, MBR is often used for p
with the Pythagorean theorem or itself, so we can think of this as a correct way to prove it.Second, PARABOLIC(1), do not know how many people and I, in the middle school study has not been to understand the definition of parabola, then began to use. In high school, or the Xinhua dictionary tells me what is a parabola: the set of points that are equal to the point and the fixed line.For a parabolic line perpendicular to the x axis, we can make some simple inferences.Let's start with the reverse
requires constant time. When there are n>1 elements, we decompose the run time as follows:decomposition : The decomposition step only computes the middle position of the subarray, which requires constant time, so D (n) =o (n).Solution : We recursively solve two sub-problems of both scale N/2, which will contribute 2T (N/2) uptimeMerging : We have noticed that the process merge on a subarray with n elements requires O (n) time, so C (n) =o (n).When th
partitions based on the extended partition (the extended partition is not available, can only be used to create logical partitions) (SCSI hard disk up to 15 logical partitions, IDE hard disk up to 63 logical partitions)3, MBR only support not more than 2T of hard disk, more than 2T of hard disk will only 2T
GTP is a relatively new partitioning mechanism
disk for easy administration.Different partitions by: device name + partition number means, such as Sda1\sda2The mainstream partitioning mechanism is divided into MBR and GPT two kinds.partitioning is not a physical, but a logical concept. The MBR (Master Boot Record) is a traditional partitioning mechanism that is applied to the vast majority of PC devices that use the BIOS.Apple PC EFI partition mechanism.MBR supports 32bit and 64bit systemsMBR supports limited number of partitionsMBR only su
: Partitioning is a software concept, the disk logic is divided into several areas, different partitions by: device name + partition number means, such as Sda1,sda2
The main partitioning mechanism is divided into MBR and gpt,mbr (Master Boot Record) is a traditional partitioning mechanism, applied to most of the BIOS used in the PC device, MBR support 32bit and 64BIT,MBR support the number of partitions is limited, MBR only support not more than 2T
of which is used as a separate disk for easy management.Different partitions are represented by: "Device name + partition number", such as Sda1,sda2.The main partitioning mechanism is MBR and GPT.Six, MBR (master boot record, master boot recording)MBR is a traditional partitioning mechanism applied to most PC devices that use BIOS booting (Apple uses EFI)
MBR supports 32-bit and 64-bit operating systems
MBR supports a limited number of partitions
MBR supports hard drives up to
-problem takes time D (n), the solution of the Jia Cheng original problem of (n) then get the recursive formula:
T (n) ={θ (1) If, n≦c
at (n/b) +d (n) +c (n) Other
4. Merge sort algorithm
the worst-case run-time t (N) recursion is established to set the number of merge sort n, and an element of the merge sort requires constant time when there are n>1 our elemental decomposition run time is as follows: decomposition: The decomposition step only computes the middle position of the sub-arra
limited number of partitions
3 MBR supports only 2T hard drives, and more than 2T hard drives only support 2T space
4 MBR partitions
1 MBR partitions can create up to 4 primary partitions only
2 each extended partition must occupy one primary partition
3 A maximum of 63 IDE partitions and 15 SCSI partitions per logical partition
GPT
byte is the low 8 bits of the cylinder number.
1Bytes
Type: partition type, such as 0x0b=fat32,0x83=linux, 00 indicates that this item is not used
1Bytes
Endhead, partition over magnetic number one
2Bytes
ENDSC: Partition end sector and cylinder number, defined as previous
4Bytes
Relative: Partition relative sector address under linear Addressing (absolute address for base partition)
4Bytes
Sectors: P
1. Back up the configuration of CATOS and MSFC.2. Place the IOS file in the flash card of slot0. Like c6sup12-jsv-mz.121-11b.EX1
3. Run the dir slot0 command to confirm that the file is already in the flash card of slot0.
4. Configure the Catos startup parameters. Next time, the system will be started to ROMMON:
Console> (enable) set boot config-register 0x0
5. Switch to MSFC:
Console> (enable) session 15
6. Modify MSFC configuration parameters:
Router # configure terminal
Machine (config) # con
This tool function does not make sense, just because the extend method of ext is not well understood, wrote a simplified extend method to help understand./** * */e = {}; E.extend = function (Sub, SUP) {//Borrow constructor Sub.prototype = sup;//Preserve the constructor of the parent class in order to use the call in the subclass constructor, Bind the parent class variable under this sub.prototype.superclas
. Improves the readability of pre-formatted text for all browsers. */Pre {white-space:pre-wrap;}/*set consistent quote types. Set a consistent reference format. */Q {quotes: "\201c" "\201d" "\2018" "\2019";}/*address inconsistent and variable font size in all browsers. Handles the inconsistency of font size across all browsers [translator Note: The original literal is: handles inconsistent and changeable font sizes in all browsers]. */small {font-size:80%;}/*prevent ' Sub ' and '
Basic Concepts
For A→b A\rightarrow B
Support degree (support):
P (A∩B) p (A∩B), the probability of both A and B
Confidence degree (confidence strength):
Conf (a→b) =sup (a∪b) sup (A) =p (b| A) conf (a\rightarrow B) = {sup (a∪b) \over sup (a)} = P (b| A
That is, the probability that B will occur at the same time in th
JS Code
function $OBJ (o) {return document.getElementById (o);}
Var Etag=false; Function Seval (softid,et) { if (etag==true) { alert (' You have already voted, thank you for your participation! '); return; } var file=url + ' digg.php?et= ' +et+ ' id= ' +softid; var html_doc=document.getelementsbytagname (' head ') [0]; var js=document.createelement (' script '); js.setattribute (' type ', ' text/javascript '); js.setattribute (' src ', file); js.onreadystatechange=function () {
the row[cimg]gif/aaa.gif[/cimg] Picture Center WrapText Control class:[BR] Line feed[B] Bold word [b][i] italic word [i][u] underline [u][s] Delete line [s][Sub] text subscript [Sub][SUP] text superscript [SUP][Left] text is right-aligned[Right] text right-aligned[Center] text centered [center][Align= (left|center|right)] text alignment [align][Size= ([1-6])] text size [size](fonts) [Font][Color= (text col
state
Creating Poolboy_sup and workers
Supported options
Poolargs:
Worker_module:worker module name, starting Pool_boy supversior, incoming worker_module parameter
Size: Initializes the #state. Size, and Init eventually creates the number of worker
Max_overflow: Initializes the #state. Max_overflow
Strategray: Adding a worker policy
New_woker
New_worker (SUP): Create worker under Su
All hardware devices in Linux are abstracted as files and stored in the/dev directory. Disks are no exception.The name of the disk is generally hd[a~z] or sd[a~z], "A~z" is the disk ordinal, the first disk is "a" and the second disk is "B". The name of the IDE device is the beginning of HD, and the name of the SATA, SCSI, SAS, USB device starts with SD. So HDA represents the first IDE hard drive.In Windows, a piece of disk is divided into multiple partitions, called the C-drive, D-Disk, in Linux
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