# Draw a corresponding flow chart to find the factorial of a given number using recursion. 10m Dec2008

By | April 14, 2016

1. (a) Design an algorithm, draw a corresponding flow chart and write a program in ‘C’, to find the factorial of a given number using recursion. 10m Dec2008

Flowchart:

Code:

#include<stdio.h>
void main()
{
int factorial();
int FACT,NUM;
clrscr();
printf(“ENTER NUMBER : “);
scanf(“%d”,&NUM);
if(NUM>0)
{
FACT=factorial(NUM);
printf(“\nFACTORIAL OF GIVEN NUMBER IS %d “,FACT);
}
else
printf(“\nERROR:GIVEN NUMBER IS %d NEGATIVE”,NUM);
getch();
}

int factorial(int N)
{
int RESULT;
if(N==1)
return(1);
else
RESULT=N*factorial(N-1);
return(RESULT);
}

 Source code
```#include<stdio.h>
void main()
{
int factorial();
int FACT,NUM;
clrscr();
printf("ENTER NUMBER : ");
scanf("%d",&NUM);
if(NUM>0)
{
FACT=factorial(NUM);
printf("\nFACTORIAL OF GIVEN NUMBER IS %d ",FACT);
}
else
printf("\nERROR:GIVEN NUMBER IS %d NEGATIVE",NUM);
getch();
}
int factorial(int N)
{
int RESULT;
if(N==1)
return(1);
else
RESULT=N*factorial(N-1);
return(RESULT);
}```

Screen Shots:

(b) Write a’C’ program to find whether a given five digits number is a palindrome. 10

Solved program can be found on this link http://cssimplified.com/c-programming/write-a-recursive-program-in-c-to-find-whether-a-given-five-digit-number-is-a-palindrome-or-not-10m-dec2005

(c) Write a program in’C’ to find all Armstrong numbers in the range of 0 and 999.

Hint: An Armstrong number is an integer such that sum of the cubes of its digits is equal to the number itself, e.g.: 153 is Armstrong number. 10

Solved program can be found on this link http://cssimplified.com/c-programming/a-c-program-to-find-all-armstrong-numbers-in-the-range-of-0-to-999