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

Area under curve, Write a program to find the area under the curve y = f(x)...

Write 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 can b

Palindrome, Problem : Change to palindrome A palindrome is a string that r...

Problem : Change to palindrome A palindrome is a string that reads the same from both the ends. Given a string S convert it to a palindrome by doing character replacement. Your ta

Define bitwise-and operator, Define Bitwise-AND Operator: &:? The bitwi...

Define Bitwise-AND Operator: &:? The bitwise-AND operator (&) compares every bit of its first operand to the corresponding bit of its second operand. If both bits are 1 the mat

How to double to int, char P[100]; double X=533.8*22500; sprintf(P...

char P[100]; double X=533.8*22500; sprintf(P,"%f %u",X,(unsigned int)X); MessageBox(P,"SSS"); //12010500.000 12010499

Determine the current flowing by resistor, For the circuit shown in Figure,...

For the circuit shown in Figure, verify the p.d. across resistor R3. If the total resistance of the circuit is 100Ω, verify the current flowing by resistor R1. Find also the

Wap to swap the three digit number, WAP TO SWAP THE THREE DIGIT NUMBER ...

WAP TO SWAP THE THREE DIGIT NUMBER void main () { int b,r,n,r1,r2; clrscr (); printf ("Enter the Value: "); scanf ("%d",&n); r=n%10; n=n/10; r1=n%10;

Loops, how to get plus asterisk pattern

how to get plus asterisk pattern

#titlethe Average Temperature in Paradise.., Writing and compiling a progra...

Writing and compiling a program from a given Use Case definition. Follow the Average Temperature in Paradise

Board coloring, programing code on board coloring in clanguage

programing code on board coloring in clanguage

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