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

Write a c program to input five numbers, Write a C program to input five nu...

Write a C program to input five numbers and print them out on a new line e.g 5, 10, 15, 20, 25 displayed as   5   10   15   20   25 #include stdio.h   void main()   {

Develope a program, Develop a program to meet the following requirements: ...

Develop a program to meet the following requirements: 1. Must use at least one function in addition to main (you can use more) 2. Must use selection 3. Must use deference/indire

Can you overload a function depend only on whether parameter, Can you overl...

Can you overload a function depend only on whether a parameter is a value or a reference? A: No. Passing by value and reference looks identical to the caller.

Padovan string, A Padovan string P(n) for a natural number n is defined as:...

A Padovan string P(n) for a natural number n is defined as: P(0) = ‘X’ P(1) = ‘Y’ P(2) = ‘Z’ P(n) = P(n-2) + P(n-3), n>2 where + denotes string concate

Want a scraping program created, Want a scraping program created Project...

Want a scraping program created Project Description: We need to hire a professional developer to scrape the site for information such as *product title *Product Price

Describe spaghetti programming, Describe spaghetti programming. - Spagh...

Describe spaghetti programming. - Spaghetti programming refers to codes which tend to get tangled and overlapped throughout the program. - It makes a program complex and ana

code, direction[] = {L,R,R,L,L,R,R,R,R,L,Z} length[]= {2,2,1,1,1,2,5,2,2,3...

direction[] = {L,R,R,L,L,R,R,R,R,L,Z} length[]= {2,2,1,1,1,2,5,2,2,3,1}

What is inheritance, What is inheritance? Class, the vehicle, which is ...

What is inheritance? Class, the vehicle, which is used to execute object-oriented concepts in C++, has given a new dimension to this idea of reusability. Many vendors now offer

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