A C program to find the GCD of given numbers using recursion . This unit can be invoked from other parts of a program. A computer program cannot handle all the tasks by itself. Instead its requests other program like entities . A function is a self contained block of statements that perform a coherent task of same kind.
The name of the function is unique in a C Program and is Global. It means that a function can be accessed from any location within a C Program. We pass information to the function called arguments specified when the function is called. And the function either returns some value to the point it was called from or returns nothing.
We can divide a long C program into small blocks which can perform a certain task. A function is a self contained block of statements that perform a coherent task of same kind. Recursive functionis a function which calls itself. Calling a function within itself makes it a endless loop.
- This code needs to have both a recursive and iterative function, with the iterative function having the loop. How does this need to be done?
- Calculate GCD of two numbers in C. A program to calculate GCD of two numbers.
- HCF/GCD in C using recursion HCF. Highest common factor can be calculated using recursive method. HCF is also called as GCD.
- One thought on “ C/C++ Program to Find GCD of Two Numbers Using Recursion ” junaid kundi March 10, 2016.
- Example to find the GCD of two positive integers (entered by the user) using recursion in C programming.
- Write a program that reads two integers from keyboard and calculate the greatest common divisor (gcd) using recursive function.
So we need to take care that there must be a termination condition in every recursive function. For writing a function and using it in the C program, we should declare the function in the MAIN function. Declaration has to done in the area before the code starts, same area where we declare data variables. Function returns value and the ones which does not return any value is called and declared as void. This function which we are writing returns the gcd in decimal form as output.
The values inside the round brackets are called Arguments. The Argument and return type are integer type. A function can return only one value so we have to take only one data type in which its value is expected. Let. Other variable will be GCD which will be for holding the resultant factorial value returned by the FUNCTION. The identified variables are GCD, NUM1, NUM2.
Now, Selection of data type is int data type due to the values expected are decimals and they will be holding smaller values so int data type is sufficient. Main program needs only declaration of variables and function prototype. Also messages for user and scanning values. Now the end condition will be when one of the number becomes zero.
In this program there is a risk of generating an ENDLESS LOOP. Here we have to Check the TERMINATION condition is given or not. X & Y are values passed to the function given two numbers..
Gcd C Program Recursive Rule
Find GCD of two Numbers using Recursion in C, C++. C Program #include <stdio.h> int gcd.
A C program to find the GCD of given. A C program to find the GCD of given numbers using recursion. Before understanding gcd recursive function.