C++ Practice Programs

नोट :- यदि आपको सोर्स कोड सही से न दिख रहें हो तो कृपया अपने ब्राउज़र को डेस्कटॉप मोड में करलें |

C++ "Hello, World!" Program

// Your First C++ Program  1st method

#include <iostream>

using namespace std;

int main() {

    cout << "Hello World!";

    return 0;

}

Output

Hello World!

// Your First C++ Program second method

#include <iostream>

int main() {

    std::cout << "Hello World!";

    return 0;

}

Output

Hello World!

 

C++ Program to Print Number Entered by User

#include <iostream>

using namespace std;

int main() {   

    int number;

    cout << "Enter an integer: ";

    cin >> number;

    cout << "You entered " << number;   

    return 0;

}

Output

Enter an integer: 23

You entered 23

 

C++ Program to Add Two Numbers

#include <iostream>

using namespace std;

int main() {

  int first_number, second_number, sum;

  cout << "Enter two integers: ";

  cin >> first_number >> second_number;

  // sum of two numbers in stored in variable sumOfTwoNumbers

  sum = first_number + second_number;

  // prints sum

  cout << first_number << " + " <<  second_number << " = " << sum;    

  return 0;

}

Output

Enter two integers: 4

5

4 + 5 = 9

 

C++ Program to Find Quotient and Remainder

#include <iostream>

using namespace std;

int main()

{   

    int divisor, dividend, quotient, remainder;

    cout << "Enter dividend: ";

    cin >> dividend;

    cout << "Enter divisor: ";

    cin >> divisor;

    quotient = dividend / divisor;

    remainder = dividend % divisor;

    cout << "Quotient = " << quotient << endl;

    cout << "Remainder = " << remainder;

    return 0;

}

Output

Enter dividend: 13

Enter divisor: 4

Quotient = 3

Remainder = 1

 

Example 1: C++ Program to Swap Two Numbers

#include <iostream>

using namespace std;

int main()

{

    int a = 5, b = 10, temp;

    cout << "Before swapping." << endl;

    cout << "a = " << a << ", b = " << b << endl;

    temp = a;

    a = b;

    b = temp;

    cout << "\nAfter swapping." << endl;

    cout << "a = " << a << ", b = " << b << endl;

return 0;

}

Output

Before swapping.

a = 5, b = 10

After swapping.

a = 10, b = 5

 

Example 2: Swap Numbers Without Using Temporary Variables

#include <iostream>

using namespace std;

int main()

{

    int a = 5, b = 10;

    cout << "Before swapping." << endl;

    cout << "a = " << a << ", b = " << b << endl;

    a = a + b;

    b = a - b;

    a = a - b;

    cout << "\nAfter swapping." << endl;

    cout << "a = " << a << ", b = " << b << endl;

    return 0;

}

Output

Before swapping.

a = 5, b = 10

After swapping.

a = 10, b = 5