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Program to find Product of 2 Numbers using Recursion

Program to find Product of 2 Numbers using Recursion

This C program using recursion, finds the product of 2 numbers without using the multiplication operator.

    #include <stdio.h>

    int product(int, int);

    int main()

    {

        int x, y, result;

        printf("Enter two numbers to find their product: ");

        scanf("%d%d", &x, &y);

        result = product(x, y);

        printf("Product of %d and %d is %d\n", x, y, result);

        return 0;

    }

    int product(int x, int y)

    {

        if (x < y)

        {

            return product(y, x);

        }

        else if (y != 0)

        {

            return (x + product(x, y - 1));

        }

        else

        {

            return 0;

        }

    }

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