Ƙirƙirar Lambobin Random tsakanin 2 a cikin Harshen Shirye-shiryen C

Ƙarfin ƙirƙira lambobin bazuwar na iya zama mahimmanci a wasu nau'ikan ayyuka na shirye-shiryen kwamfuta, musamman a ƙirar algorithm ko kuma inda ake buƙatar simulation. A cikin wannan labarin, za mu shiga cikin wani muhimmin al'amari na shirye-shiryen C, wanda ke samar da lambobi bazuwar. Za mu ɗauka cewa kuna da ainihin fahimtar harshen shirye-shirye na C. C shine harshe na gaba ɗaya mai ƙarfi wanda ke ba masu shirye-shirye ƙarin iko da inganci, kasancewa masu kyau ga shirye-shirye a ƙaramin matakin

Wataƙila kuna nan saboda kuna buƙatar bayani kan yadda ake samar da lambar bazuwar tsakanin 2 a cikin C. Wannan fasaha ce mai mahimmanci, musamman a cikin wasanni da kuma yanayin da kuke buƙatar kwaikwayi rashin tabbas a cikin shirye-shiryenku. Mu nutse a ciki.

Fahimtar Magani

A haƙiƙa, ra'ayin samar da lambar bazuwar tsakanin 2 a cikin C ya ƙunshi amfani da takamaiman ayyukan ɗakin karatu da harshe ya samar da farko rand() da kuma srand() ayyuka. The rand() ana amfani da shi don samar da jerin lambobi na pseudorandom, amma don tabbatar da cewa waɗannan lambobin ba su bi tsarin da ake iya ganewa ba, muna kuma amfani da su. srand() aiki, wanda ke shuka janareta na lambar bazuwar don ba mu mafi kyawun bazuwar.

Mahimmanci, ƙila za ka buƙaci tweak lambar bisa ga kewayon da kake son faɗuwar lambobin bazuwar. Misali, idan kuna son lambar bazuwar tsakanin 1 da 2, zaku yi amfani da ma'auni daban daga lokacin da kuke son lamba tsakanin 2 da 100.

Bayanin mataki-mataki na Code

Anan ga cikakken toshe lambar don ƙirƙirar lamba tsakanin 2 ta amfani da yaren shirye-shiryen C:

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main() 
{
    srand(time(0));    
    int random_number = rand() % 2 + 1;    
    printf("%dn", random_number);
    return 0;
}

Bari mu karya lambar guda ɗaya:

• Da farko mun haɗa da madaidaicin madaidaicin ɗakin karatu/fitarwa stdio.h da ma'auni na ɗakin karatu stdlib.h cewa ya ƙunshi rand() da kuma srand() ayyuka.
• Muna amfani da janareta na bazuwar lamba lokaci (0). Wannan yana tabbatar da cewa kuna samun jerin lambobi daban-daban a duk lokacin da kuke gudanar da shirin ku.
• Bayan haka, muna samar da lambar bazuwar ta amfani da rand() aiki da aiki na modulus % 2 + 1 don taƙaita kewayon ƙirƙira lambobi daga 1 zuwa 2.
• A ƙarshe, muna amfani bugawa don buga lambar mu bazuwar zuwa console.

Zurfafa zurfafa: ɗakunan karatu da ayyuka

A cikin wannan sashe, za mu nutse cikin manyan ayyuka guda biyu da muka yi amfani da su, rand() da kuma srand(), wanda ke aiki a ciki stdlib.h ɗakin karatu. Waɗannan ayyuka suna da kima yayin buƙatar lambobi bazuwar. Duk da haka, suna dogara ne da janareta na bazuwar da ke buƙatar shigarwar iri don tabbatar da cewa ba ta haifar da jeri ɗaya na lambobi ba - lamarin da zai saɓa wa manufarmu na cimma bazuwar. The srand() Ana amfani da aikin musamman a wannan batun.

A zahiri, amfani lokaci (0) kamar yadda shigarwar iri ke ba da tabbacin cewa duk lokacin da kuke gudanar da shirin, janareta na bazuwar bazuwar yana ɗaukar iri daga wannan lokacin wanda ke ci gaba da canzawa don haka, jerin abubuwan fitarwa ya bambanta kowane lokaci.