multiply two arbitrary integers a and b (a greater than b)

#include <iostream>

int multiply(int a, int b) {
    int result = 0;
    while (b > 0) {
        if (b % 2 == 1) {
            result += a;
        }
        a *= 2;
        b /= 2;
    }
    return result;
}

int main() {
    int a = 7; // Replace with your first integer
    int b = 3; // Replace with your second integer
    int product = multiply(a, b);
    std::cout << "Product: " << product << std::endl;
    return 0;
}

Explanation:

  1. Include necessary header files.
  2. Define a function named multiply that takes two integer arguments a and b.
  3. Initialize a variable result to store the product of a and b.
  4. Start a while loop that continues until b is greater than 0.
  5. Check if the current value of b is odd (b % 2 == 1).
  6. If b is odd, add the value of a to the result.
  7. Multiply a by 2.
  8. Divide b by 2.
  9. Repeat steps 5-8 until b becomes 0.
  10. Return the result, which holds the product of a and b.
  11. In the main() function, define two integer variables a and b with the desired values.
  12. Call the multiply function with a and b as arguments and store the result in product.
  13. Print the product to the console.