• <div><p>Every allocation now wastes <code>alignment</code> bytes. This is so the <code>allocate</code> method always returns a pointer that is just aligned enough for the requirement, but not more. ...
• ## alignment

千次阅读 2012-06-13 23:23:30
刚一开始理解错了题意，当我wa了两次之后，重新思考，发现在队列里的士兵可以从左边或者从右边没有比他高的即可。 由此，此题和合唱队形差不多，求一个最长升序列，以及一个最长下降序列，枚举中间的兵和他左边最长...
刚一开始理解错了题意，当我wa了两次之后，重新思考，发现在队列里的士兵可以从左边或者从右边没有比他高的即可。
由此，此题和合唱队形差不多，求一个最长升序列，以及一个最长下降序列，枚举中间的兵和他左边最长下降序列之和。
时间复杂度为o(n^2)
#include <iostream>
#include <cstdio>
#include <cstring>
#include <cmath>
#include <algorithm>

using namespace std;

double a[1010];
int inc[1010],de[1010];

int main(){
int len;
while(~scanf("%d",&len))
{
for(int i=1;i<=len;i++)
scanf("%lf",&a[i]);

memset(inc,0,sizeof(inc));
memset(de,0,sizeof(de));

for(int i=1;i<=len;i++)
{
for(int j=0;j<i;j++)
{
if(inc[i]<=inc[j]&&a[i]>a[j])
inc[i]=inc[j]+1;
}
}
for(int i=len;i>0;i--)
{
for(int j=i+1;j<=len+1;j++)
{
if(de[i]<=de[j]&&a[i]>a[j])
{
de[i]=de[j]+1;
}
}
}
int ans=0,tem;
for(int i=1;i<=len;i++)
{
tem=i;
for(int j=i+1;j<=len;j++)
{
if(de[tem]<=de[j])
tem=j;
}
if(tem==i)
ans=ans<(de[tem]+inc[i]-1)?(de[tem]+inc[i]-1):ans;
else
ans=ans<(de[tem]+inc[i])?(de[tem]+inc[i]):ans;
}
printf("%d\n",len-ans);
}

return 0;
}

展开全文
• I have a very accurate phone alignment and I want to use it to generate the corresponding state alignment. Does anyone know a way to do that ? I know that I can generate forced state alignment with ...
• <div><p>From the documentation example of an alignment report; Successfully aligned, percent: 65.08% Alignment failed because of absence of V hits: 4.26% Alignment failed because of absence of J hits:...
• Linear Alignment An alignment of a read to a single reference sequence that may include insertions, deletions, skips and clipping, but may not include direction changes (i.e. one portion of the align...
reads比对到参考序列后，bam文件中会有2048、2064这样的flag，表示supplementary alignment 。 为了理解这个概念，可能需要以下知识。

Linear Alignment

An alignment of a read to a single reference sequence that may include insertions, deletions, skips and clipping, but may not include direction changes (i.e. one portion of the alignment on forward strand and another portion of alignment on reverse strand). 1

Chimeric Alignment

An alignment of a read that cannot be represented as a linear alignment. Typically, one of the linear alignments in a chimeric alignment is considered the “representative” alignment, and the others are called “supplementary” and are distinguished by the supplementary alignment flag. 1

Chimeric reads are indicative of structural variation in DNA-seq and it may indicate the presence of chimeric genes in RNA-seq. 2

In short, chimeric reads can be split in to two or more parts, each part would be mapped to reference(it’s not hard-clipped), the total length of the mapped part is longger than read length. 3

Representative alignment

A chimeric alignment that is represented as a set of linear alignments that do not have large overlaps typically has one linear alignment that is considered the representative alignment.

I don’t understand representative alignment with the word “representative” in my mother tongue and could not find more information(figure) about it. One read can align to multiple positions, we can find one alignmnet position which sequence do not have large overlaps, it called representative alighment, for other alignment positions, we called them supplementary alignment.

It seems that GATK can realignment those representative reads to the correctly position via RealignerTargetCreator and IndelRealigner. (WARNING: I am not quite sure if I understand this correctly. If someone could help me, please leave me a message below, thanks, thanks.)

Supplementary Alignment

Primary Alignment and Secondary Alignment

A read may map ambiguously to multiple locations, e.g. due to repeats. Only one of the multiple read alignments is considered primary, and this decision may be arbitrary. All other alignments have the secondary alignment flag.
展开全文
• <div><p>Could be an interesting feature a property called .alignment where you can specify the default button alignment (now they are aligned from left)</p><p>该提问来源于开源项目：viewthespace/...
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• <p>Are there any plans to support chimeric alignment (similar to GMAP) in addition to spliced long-sequence alignment? This would be great, as GMAP (and to some extent STAR) is to my knowledge the ...
• <div><p>...<p>Could you elaborate why the alignment is restricted here?</p><p>该提问来源于开源项目：GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator</p></div>
• I use this tool for assembly vs assembly alignment, it's really run so fast. And I find the output format is sam. So could convert the sam file to other format witch can report alignment identity...
• I was hoping that I could set the text alignment for each paragraph. The problem with Reveal.js is that the text is aligned at the center. That problem has been exacerbated in kreator by aligning ...
• i have problem to set title,text,description alignment on CUSTOM Skin. In all of Skins (i think) there is no alignment support for text and title and surprisingly setDescriptionAlignemnt wont work on ...
• <p>The warning message you are getting indicates that some of your sequences have a poor alignment. This can be caused by your sequences being flipped. If you set flip=t, the align.seqs command ...
• ve been working on disassembling Unity3D archives, and it turns out that they frequently use 4- and 8-byte alignment, that is, the same structures get arbitrary zero padding up to next address ...
• <div><p>Fix mixed alignment and other rubocop warnings</p><p>该提问来源于开源项目：ManageIQ/manageiq</p></div>
• Add element alignment under color preset when elements selected. And add features for distribution and justify alignment. <p>Todo: - [X] Distribution should be enabled more than 3 selected selected, ...
• <div><p>New ECAL Alignment values for 2011</p><p>该提问来源于开源项目：cms-sw/cmssw</p></div>
• <div><p>Added alignment pragma, which replaces ivdep pragma if running with OpenMP</p><p>该提问来源于开源项目：devitocodes/devito</p></div>
• <div><p>This patch includes an inline function which produces aligned sizes for use in ensuring 16-byte alignment of stacks.</p><p>该提问来源于开源项目：IoLanguage/io</p></div>
• /home/gene/Coding/seqan3/include/seqan3/alignment/matrix/alignment_trace_algorithms.hpp:125:21: required from ‘alignment_t seqan3::detail::alignment_trace(database_t&&, query_t&&, ...
• <div><ul><li>option to enable/disable emacs style function alignment</li><li>declaration of multiline lists, tuples and records use normal indent, not continuation</li></ul>该提问来源于开源项目：...
• Why do we need an alignment to map the vcf to a reference genome? When the vcf is generated, it is already aligned against a reference, so why align it again? </p><p>该提问来源于开源项目：...
• 最近对Interference Alignment很感兴趣，在网络上下载的一些关于Interference Alignment的资料，与大家共享。。
• <p>would it be possible to optionally output the reference and query alignment string (potentially without hard and soft clipped sequences) in the PAF format? <p>Thanks, Felix</p><p>该提问来源于开源...

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