Forem: etibor2006

TANLOV operatorlari.

etibor2006 — Wed, 08 Feb 2023 12:47:43 +0000

_Bu operatorlar if_va else bolib ular masalalar ishlashda qo'l keladi.if() ichida beriladi.Bunda + - > < orqali shartlar beriladi.() ichida berganimizda hohlagancha berishimiz mumkin faqat gina ||(yoki)&&(va)!0(mumkin emas).Bular nima (||) bu belgi (yoki)bo'lib shartlar berganimizda bita tog'ri javob bo'lsa ham javob to'ri deb chiqaradi.(&&) bu belgi esa (va) bo'lib shart berganimizda bita javob notogri bolib qolsa ham notog'ri deb chiqaradi.(!0) bu belgi esa (mumkin emas) bo'lib shart berganimzda tog'ri javob kiritsak notog'ri deb beradi,notog'ri javob kiritsak tog'ri deb beradi.

_Else _ bu shartlar berganimizda qaysi javobga togri kelmasa sirazi else tushib cout ga nimabergan bolsak o'sha javob ekranga chiqadi.
_Bu operatorlarga doir misollar

#include <iostream> 
#include <iomanip>
#include <cmath>
using namespace std;
int main(){
int year;
  cin >> year;

  if(year % 400 == 0){
  cout <<  1;
  }
    else if(year % 4 == 0 && year % 100 == 0 && year % 400 != 0){
  cout <<  0;
  }else if(year % 4 == 0 && year % 100 != 0){
  cout <<  1;
  }else if(year % 4 != 0){
   cout << 0;   
  }

  return 0;
}

_
Bu if else operatorlari har doim ham kerek .Chunki bu operatorlar har bir masala uchun ham kerak.

int main() {
int a,b;
  cin >> a >> b;
  if(a < b && a *a == b){
cout << a << '*' << a << '=' << b;
    }

 else if( a > b && a == b * b){
   cout << b << '*' << b << '='<< a;
 }
  else{
    cout << "none";
  }
}

Masalar ishlaganimizda har doim ham if alohida qib yozishimz shartmas.Bizga sirazi bita javob kerek bolsa else ifqilib yozib ketsak ham bo'ladi.Bizni masalamiz faqatgina if da ishlanadigon bo'lsa ko'p sharlarni ichma ich ifqilib yozib ketsak ham bo'ladi.Bunga doir misolni ham korishingiz mumki.

#include <iostream>
using namespace std;
int main6(){
char belgi;
  cin >> belgi;
  if(belgi== 'l' || belgi == 'L'){
    cout << "Lions" ;
    if(belgi == 'e' || belgi == 'E'){
      cout <<  "Eagles";
       if (belgi == 'b'|| belgi == 'B'){
         cout << "Bears";

       }
    }
  }

 else{
   cout << "none";
 }

}

@dawroun

Wart Operatorlari haqida ma'lumot.

etibor2006 — Fri, 13 Jan 2023 12:22:18 +0000

BU operator 2 tamonlama ishlatiladigon masalalani ishlashimiz mumkin.Miaol uchun masalalar.

int yosh;
cin >> yosh;
(yosh <= 12 || yosh >= 50)? cout << "30% chegirma sizda bor": cout << "yoq";

string pasport;
  int age;
  cout << "passportingiz bormi (bor yoki yoq kiriting)";
  cin >> pasport;
 cout << "yoshingizni kiriting" <<  endl;
  cin >> age;
  (pasport == "bor" && age >= 18)? cout << "sz saylash huquqiga egasiz" : cout << "saylash huquqiga ega emasiz";

int a=10, b = 5;
   a < b ? cout << a : cout << b;

cpp
// masala 1
int ogirlik;
cout << (ogirlik > 100);
cout << ogirlik;
// masala 2
int a;
cout << (a != 0);
// masala 5
cout << (a > 0 && a < 100);

// masala 3
int olma;
int apelsin;
cout << (olma != apelsin);

// masala 4
int x;
cout << (x == 0);

// masala 6
char javob;
cout << (javob != 'Y' || javob != 'y');

// masala 7
int z;
int y;
cout << (x > z) && (y > z);
// masala 8
int i = 5;
int j = 10;
int k = 15;
cout << (i==k/j);
// masala 9
cout << (k % i < k/i);

C ++ ASSIGMENT OPERATOR HAQIDA .

etibor2006 — Fri, 23 Dec 2022 13:43:29 +0000

Biz int ishorasiniga bitta son belgilab uni keyinchalik boshqa songa o'zgartirsak ham bo'ladi.Ya'ni o'sha soni ichiga boshqa son qo'yishimiz mumkin digani.Miaol uchun...

  int a=10;
 string ism = "etibor";

  cout << a << endl;
  cout << ism << endl;

 a = 20;
 ism = "kimsan";
 cout << a << endl;
  cout << ism;
  return 0;
}

int qilib a ni belgiladik.Yangi misol uchun bizga boshqa butun son kereak bo'lsa a = 20;qilib yozib ketsak bo'ladi.
Misolni teng ishorasidan kegn javobini qisqartirib yozishimiz ham mumkin.

 int a =5;
 int b = 6;

  b = b + a; // b += a;
 a + a - 10; // a-= 10;

 b*=;
 a /= b;
 cout << b; 
  return 0;
}

b = b + a; qilib yozganimizdan koraroq qisqaroq qilib ham tezro ishlashimiz uchun b += b; hudi shunaqa qib yozsak ham bo'ladi.
Bu kodda yangi bir ishora yaratishimiz mumkin.

#include <iostream>
#include <cmath>
using namespace std;
int main4 (){

  int a = 5;
 int b = 2;

  a += 5;

  cout << a << endl;
  b -= 3;
 cout << b;
  return 0;
}

@dawroun

+ - / * % HAQIDA MA'LUMOT,

etibor2006 — Mon, 19 Dec 2022 14:44:22 +0000

- / * shulani hammasi matematikada qanaqa qanaqa vazifani bajarsa masala ishlashda ham huddi shunaqa.Faqatgina % boshqa funksiyani bildiradi.

 cout<< 3 / 10 << endl;
 cout << 3 % 10 ;

% misolni suratini chiqazadi.

int a = 123;
   cout << a / 100 % 10 << endl;
   cout << a / 10 % 10 << endl;
  cout << a % 10;

  return 0;
}

Sonlarni oldidan undov chiqarib ishlashimiz ham mumkin.

int son;
  cin >> son;
 cout << son / 10000 << '!';
 cout << son / 1000 % 10 << '!';
  cout << son / 100 % 10 << '!';
 cout << son / 10 % 10 << '!';
 cout << son % 10 ;
  return 0;
}

5 honali soni o'rtasidan 3 honadagi soni oshimiz ham mumkin.

int son;
  cin>>son; 

 cout << son / 100 % 10;

  return 0;
}

@dawroun

CHAR VA BOOL HAQIDA MA'LUMOT.

etibor2006 — Fri, 16 Dec 2022 14:45:37 +0000

Char sozi charactersozini qisqartmasi.
Char biror bir soni yokida belgini, harfni bittali '' ichiga begilab qoyishimiz mumkin.Undan ortiq belgilarni saqlab qo'ya olmimiz.Faqatgina bir dona belgi saqlash mumkin.

 int a =10;
  float b =10.5;
  double c =10.2536488;
  string d = "ikkichilar";

  // char => character (belgi);

  char belgi = 65;
  int son = 'A';
  //int son = 3;

 cout << belgi << " " << son;


  return 0;
}

Butun son bilan belgini o'rnini o'zgartishimiz ham mumkin. Misol uchun

int a = 65;
char b = 'z';

cout<< char (a);
cout << endl << int (b);

  return 0;
}

Bool bu booleansozini qisqartmasi.True-False ya'ni tori yoki notog'riligini bilishimiz mumkin.True 1 ga teng.False esa 0 ga teng.

// bool => boolean
  bool a = true;
  cout << (10 < 5);
 return 0;
  }

Sonlarni yahlitlash uchun niz yangi bir kutubxona chaqaramiz.Bu kutubxonani nomi <cmath>buni ichidan bizga kerakak bo'ladi round.

#include <iostream>
#include <cmath>
using namespace std;
int main5 (){
 float a;
  cin>>a;
  cout << round(a);
  return 0;
}

ASCIIjadvalida katta harflarA~Zva kichik harflara~zketma-ket joylashtirilgan. Ushbu hususiyatdan foydalanib bitta kichik harf qabul qiling va katta harfga convert qilib chop etishni o'rganamiz.

 char c = 97-32;


 cout << c ;

  return 0;
}

#include <iostream>
#include <cmath>
using namespace std;
int main7 (){
  char a;
  cin >> a;


 cout << char (a - 32) ;

  return 0;
}

@dawroun

C ++

etibor2006 — Wed, 14 Dec 2022 14:58:55 +0000

Biz bugun sonlarini kasr korinishida ishlashni o'rganamiz.

float eni,boyi;
  cin>> eni >> boyi;
  cout << setprecision(2)<< fixed << eni * boyi;

  return 0;
}

Bu kodda esa to'rtburchakni boyi bilan enini topishini o'rganamiz.

 int eni,boyi;
  cout<<"to'rtburchakning enin kiriting:";
  cin>>eni;
  cout<<"to'rtburchakni boyini kiriting:";
  cin>>boyi;
  cout<<"tortbuchakni yuzi:" << eni * boyi;



  return 0;
}

Bu kodda esa 2 xonali soni yonama-yon yozishni organamiz.

 int kun,oy;

  cin>>kun >> oy;
  cout<<"Birthday is ";
  cout<< setw(2) << setfill('0')<< kun <<'-';
  cout<< setw(2) << setfill('0') << oy <<'.';


  return 0;
}

cout << "1!=" << 1*1 <<endl;
  cout <<"2!=" << 2*1 << endl;
  cout <<"3!=" << 3*2 << endl;
  cout << "4!=" << 4*6 << endl;
  cout << "5!=" << 5*24;


  return 0;
}

Tekis oldidan sonin qo'yishni o'rganamiz.

cout << "1!=" << 1*1 <<endl;
  cout <<"2!=" << 2*1 << endl;
  cout <<"3!=" << 3*2 << endl;
  cout << "4!=" << 4*6 << endl;
  cout << "5!=" << 5*24;


  return 0;
}

Dastlabki 10 taFibonaccisonlarini chop etishini o'rganamiz.

#include <iostream>
using namespace std;
int main (){
int a = 0;
int b = 1;
int c = a + b;
cout << a <<  ' '  << b << ' ' << c << ' ';
a = b;
b = c;
c = a + b;
cout << c << ' ';
a = b;
b = c;
c = a + b;
 cout << c << ' ';
a =b;
  b = c;
  c = a + b;
   cout << c << ' ';
  a =b;
  b = c;
  c = a + b;
    cout << c << ' ';
  a =b;
  b = c;
  c = a + b;
    cout << c << ' ';
  a =b;
  b = c;
  c = a + b;
   cout << c << ' ';
  a =b;
  b = c;
  c = a + b;

  cout << c << ' ';

return 0;
  }

@dawroun

C ++

etibor2006 — Wed, 14 Dec 2022 11:58:03 +0000

/*  
      data tip non=qiymat;
---------O'zgaruvchilar turlari---------
int=>integer ya'ni faqat butun son saqlaydi;4 byte
string=>faqat tekislar saqlash uchun;4 byte
char=>faqat bitta belgi saqlash uchun;1 byte
float=>faqat kasr son saqlash uchun;4 byte
*/

int yosh=16;
string ism= "Etibor";

cout<<"salom "<< ism <<endl;
 cout<<"man "<< yosh<< "yoshman";


return 0;
  }

Biz bu kodda butun sonlarni ekaranga chiqarishmi organamiz.

#include <iostream>
using namespace std;

int main1() {
  cout<<"salom ikkichilar\n";
  cout<<"mani yoshim" <<" 16 da"<< endl;
  cout<<"25+5"<< endl;
  cout<<25*5;
  cout<<"ota"<<" ona\n";
  cout<<25+5;
  return 0;
}

Bu kodda siz cin "siaut"ni ishlatishni organasiz.

int son;
  cout<<"sanni kiriting:";
  cin>>son;
  cout<<"siz kiritgan son:"<< son;
return 0;
  }

BU kodda sonlarni bir qatorga chiqarishni o'rganamiz.SHu bilan birgalikda matinlarni ham.

int son,son1,son2;
son1=10;
son2=son1+20;
son=son1+son2;
  cout<<son<< endl;
  son=son*3;
  cout<<son<<endl;
  string ism,a,b,c;
  ism="Etibor";
  a="salom ";
  b=" nima gap";
  cout<<a<<ism<<b<<endl;
  b="qolaysan";
  cout<<b;
return 0;
  }

Bu kodda esa masalalar ishlashmiz mumkin.cinyordamida.

int m;
  cin>> m;

  cout<<m<<m<<m<<m<<m<<m<<endl;
  cout<<m<<"    "<<m<< endl;
  cout<<m<<"    "<<m<< endl;
  cout<<m<<m<<m<<m<<m<<m;

  return 0;
 }

Bu kodda esa karajadval ishlashni organamiz.

  int son;
  cin >> son;

  cout << son << "*" << 1 << "=" << son*1 <<endl;
  cout<< son <<"*"  << 2 << "=" << son*2 <<endl;
  cout<< son <<"*" << 3 << "=" << son*3 <<endl;
  cout<< son <<"*" << 4 << "="<< son*4 <<endl;
  cout<<son <<"*"  << 5 <<"=" <<son*5 <<endl;
  cout<<son <<"*" << 6 <<"=" <<son*6 <<endl;
  cout<<son <<"*" << 7 <<"=" <<son*7 <<endl;
  cout<<son <<"*" << 8 <<"=" <<son*8 <<endl;
  cout<<son <<"*" << 9 <<"=" <<son*9 ;
  return 0;
}

@dawroun

C ++ ga kirish

etibor2006 — Mon, 12 Dec 2022 14:56:26 +0000

Biz bugun c++ dasturida qanday iwlatilishini organdik.C++ da kod yaratishimiz mumkin.Ushbu koda kamentaryaga olishni organasz.

// cout <<"salom nima";

/* cout << "salom nima";



  cout<<"salom nima"; */

C++ ishlatishni organdik.
include
using namespace std;
int main() {

Bunda<isotream> kutubxonani nomi,std bu biz foydalanmoqci bogan kutubxonani ichidagi mahsus buyrug'.Misol uchun biz kod yozmoqchi bolsak
std::cout<<"salom"
cout tolig' etilishi consolema'nosi ekranga chiqarish."" qoyish nimaga kerek.Agar qoshtirnoq qoymase tekismizani ekrangga chiqarmidi.Qo'sh tirnoq qoyganimizdan kegn ; qoyamiza agar ohirda shuni qoymasdan ekranga chiqarishni bosak xato deb chiqaradi.Using namespace `bu kop tekis yozganimizada ha dib std qoymasligimz uchun.Main bu asos yani shu kodlarni yozganimizda hamasini oz ichiga oladi.

@dawroun