Explain recursive functions, C/C++ Programming

Assignment Help:

Recursive Functions

Recursion is a process by which a function includes itself with a condition for its safe exit. It is best suitable for a recursive problem. A typical example is the factorial problem, the programs without and with recursive functions are shown below.

void main()

 {

   long factorial ( int num); // Forward declaration of

       //a function

   int num;

printf("\n Enter a number:");

scanf("5d",&num);

printf(" Factorial of 5d is %ld",num,factorial(num));

  }

long factorial(int num)   // Non recursive

 {

   long f=1;

while ( n)

                 {

                   f = f * n;

                   n--;

                 }

                return(f);

 }

long factorial(int num)   // Recursive

 {

                if(n == 1)

                                return (1);

                else

                                return( n* factorial(n-1));

 }

 


Related Discussions:- Explain recursive functions

Program to convert fraction to decimal, Program to convert fraction to deci...

Program to convert fraction to decimal: int main() {                 float num, denom;     // numerator and denominator of fraction                 float value;

Jewel polishing, Byteland county is very famous for luminous jewels. Lumino...

Byteland county is very famous for luminous jewels. Luminous jewels are used in making beautiful necklaces. A necklace consists of various luminous jewels of particular colour. Nec

Flash my terminal vx670, Flash my terminal vx670 Project Description: ...

Flash my terminal vx670 Project Description: Have VeriFone software need it to communicate with the vx670 through com port 1 it is not talking I'm not sure why have all the r

Decode the code, By pressing ‘6’ (i.e. key’6’ one time) on the keypad, the ...

By pressing ‘6’ (i.e. key’6’ one time) on the keypad, the mobile shows ‘m’ on display screen in write text message area

Program, Define a class polynomial with three private data members a, b and...

Define a class polynomial with three private data members a, b and c of type double to represent the coefficient of two degree polynomial(ax^2+bx+c). Include a constructor in a pol

Is there anything you can do in c++ which you cannot do in c, A: No. There ...

A: No. There is nothing you can do in C++ which you cannot do in C. In spite of everything

Program that will recursively prompt for input from the user, BACKGROUND: F...

BACKGROUND: FILE SYSTEMS  In a computer, a file system (sometimes written filesystem) is the way in which files are named and where they are placed logically for storage and ret

Write a program that illustrate union declaration, Write a Program that ill...

Write a Program that illustrate union declaration? A C program encloses the following union declaration: union id { char color[12]; int size; } shirt, blouse; At this

Single string programme, write a programme that allows a user to enter 5 di...

write a programme that allows a user to enter 5 distinct words and returns them as a single string

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd