10.04.2012

Factorial C program,Algorithm,Flowchart

Q. Write a C program to find the factorial value of a number. Also write the algorithm and draw flowchart.

Ans.

/*c program to find out factorial value of a number*/
#include<stdio.h>
#include<conio.h>
int main()
{
 int n,i,fact=1;
 printf("Enter any number : ");
 scanf("%d", &n);
 for(i=1; i<=n; i++)
    fact = fact * i;
 printf("Factorial value of %d = %d",n,fact);
 return 0;
}

The output of above program would be:
Output of calculate factorial value  of a number C program
Screen shot for calculate factorial value
of a number C program



Algorithm for calculate factorial value of a number:

[algorithm to calculate the factorial of a number]
step 1. Start
step 2. Read the number n
step 3. [Initialize]
        i=1, fact=1
step 4. Repeat step 4 through 6 until i=n
step 5. fact=fact*i
step 6. i=i+1
step 7. Print fact
step 8. Stop
[process finish of calculate the factorial value of a number]

Flowchart for calculate factorial value of a number:

flowchart for calculate factorial value of a number
Figure: Flowchart for calculate factorial value of
a number C program

13 comments:

  1. it must be i-- else it will be infinite loop

    ReplyDelete
    Replies
    1. no i++ is absolutely correct
      progrm runs succesfully by taking i++.....

      Delete
    2. i++ is absolutely correct
      program runs succesfully by taking i++

      Delete
  2. can you tell me on which data structure this program is running>

    ReplyDelete
  3. fact=1 must be one becoz starts from 1 multyplying.. if we take 0 fact is 0 for any number..

    ReplyDelete
  4. i need same algorithm but through recurssion. Please, if anyone can help me out.

    ReplyDelete
  5. I need some of flowchart anybady can help with me

    ReplyDelete
  6. i think the two statement (i=i+1) and (fact=fact*i) will be interchanged....

    ReplyDelete
  7. I don't know how create a programs anyone can U teach me plz.......

    ReplyDelete
  8. Can anyone say where to get the flowchart and algorithm of EMPLOYEE DETAIL USING UNION program please?

    ReplyDelete