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

What is virtual class and friend class, Friend classes are used when two or...

Friend classes are used when two or more classes are designed to work together and require access to each other's execution in ways that the rest of the world shouldn't be permitte

Area under Curve, #queWrite a program to find the area under the curve y = ...

#queWrite a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points c

Programing, Define a structure to store roll no, name and marks of a studen...

Define a structure to store roll no, name and marks of a student. b) Using the structure of Q2. a), above write a ''C'' program to create a file "student.dat". There must be one r

Programming, I have a C++ programming assignment due on 8th January. As I a...

I have a C++ programming assignment due on 8th January. As I am out of country and cannot complete it, I would like to know how much fees would you charge to complete the assignmen

Described the isa and hasa class relationships. , Described the ISA and HAS...

Described the ISA and HASA class relationships. How would you apply each in a class design? A: A specialized class "is" specialization of another class and, thus, has the ISA re

Describe how can i allocate/unallocate an array of things?, A: Use p = new ...

A: Use p = new T[n] and delete[] p:   Fred* p = new Fred[100]; ... delete[] p; Any time you allocate an array of objects through new (generally with the [n] in the n

Wap to print sum=1!+2!+3!+4!+....n!, WAP TO PRINT SUM=1!+2!+3!+4!+....N! ...

WAP TO PRINT SUM=1!+2!+3!+4!+....N! #include stdio.h> #include conio.h>   void main() {                    int n,i;                    float sum=0,fac

How the compiler arranges the several sections , Q: How the compiler arrang...

Q: How the compiler arranges the several sections in the executable image? A: The executable contained following sections: 1.      Data Section (initialized data variable sec

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