loops - How do I perform a duplicate check in code? -


this might no-brainer some, i'm trying check if there duplicate values in code.

to clearer, creating 5 variable integers randomizes number once created. let's they're named i1, i2, i3, i4, i5.

i want run loop check on each other make sure don't have possible duplicates. if do, i'll re-random second integer that's being checked. (e.g if (i1 == i4) { i4.rand(); }) that's make sure i1 doesn't need re-checked against checked values or being stuck in long loop until different number found.

this i'm thinking if entire if else statement : if (i1 == i2), if (i1 == i3), if (i1 == i4), if (i1 == i5), if (i2 == i3), if (i2 == i4), if (i2 == i5), if (i3 == i4), if (i3 == i5), if (i4 == i5)

i know can "manually" creating lots of if / else statements, there better way it? isn't feasible if increase integer limit 20 , have if / else way through 20 value checks. know there is, can't remember. search on google turning nothing (maybe i'm searching wrong keywords), why i'm asking on here @ stackoverflow.

all want know how do it, theory-wise (how check duplicates in theory?). answer doesn't need workable function.

if want create demo code using programming language i'm using problem, itsexcel vba. think information able apply theory-wise lot of other programming languages, feel free write in javascript/jquery, c++, c#, etc. remember comment!

you looking set;

    set<integer> hs = new hashset<integer>();     hs.add(i1);     if(!hs.add(i2)){        randomize(i2);     }

hope helps. let me know, if have questions. above concept of do.

to logic code, be

   set<integer> hs = new hashset<integer>();      for(int count=0; count<array.length; count++){  // store data array , loop         datatoinsert = array[count];           while(hs.add(datatoinsert)){            datatoinsert = randomize(datatoinsert);         }      }

Comments

Post a Comment

Popular posts from this blog

curl - PHP fsockopen help required -

i trying work on cloudflare api , have found in documentation. unfortunately have no idea how can use in fsockopen or through curl. here example of post request. need know how can make request below data post using curl or fsockopen curl https://www.cloudflare.com/api_json.html -d 'a=cache_lvl' \ -d 'tkn=8afbe6dea02407989af4dd4c97bb6e25' \ -d 'email=sample@example.com' \ -d 'z=example.com' \ -d 'v=agg' here link cloudflare https://www.cloudflare.com/docs/client-api.html#s4.2 try one: $ch = curl_init("https://www.cloudflare.com/api_json.html"); curl_setopt($ch, curlopt_returntransfer,1); curl_setopt($ch, curlopt_followlocation, 1); curl_setopt($ch, curlopt_ssl_verifypeer,false); // handling of -d curl parameter here. $param = array( 'a' => 'cache_lvl', 'tkn' => '8afbe6dea02407989af4dd4c97bb6e25', 'email' => 'sample@example.com', 'z' =...
Read more

HTTP/1.0 407 Proxy Authentication Required PHP -

i working in restricted network/limited access internet. since have use proxy make web service call. here php code calling web service , response . $client = new soapclient("http: //www.xyz.com/abc/wsdls/login.wsdl", array("trace" => 1, "exceptions" => 1, 'proxy_host' => $proxy_host, 'proxy_port' => $proxy_port, 'proxy_login' => $proxy_login, 'proxy_password' => $proxy_password)); response is fatal error: uncaught soapfault exception: [wsdl] soap-error: parsing wsdl: couldn't load ' http://www.xyz.com/abc/wsdls/login.wsdl ' : failed load external entity if copy url error message , paste in browser(with same proxy settings) works. 2nd scenario is, if pass values instead of variables giving me diffarant response $client = new soapclient("http: //www.xyz.com/abc/wsdls/login.wsdl", array("trace" => 1, "exceptions" => 1, 'proxy_host' ...
Read more

c# - Resource not found error -

i have problem accessing method on homecontroller. show code of method : [httpget] public actionresult decriptidentifiantetredirige(string login_crypter, string mdp_crypter) { string loginacrypter = _globalmanager.protegemotdepasse(login_crypter); string mdpacrypter = _globalmanager.protegemotdepasse(mdp_crypter); user userapp = new models.user(login_crypter, mdp_crypter); if (userapp.authentificationvalidee(userapp.userlogin, userapp.password)) { session["name"] = userapp.userlogin; return redirecttoaction("accueil", "home"); } else { return redirecttoaction("validerauthentification", "home"); } } then in routeconfig.cs wrote route : routes.maproute( name: "authentificationapresdecryptage", url: "{controller}/{action}/{login_crypter}/{mdp_crypter}", defaults: new...
Read more