**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:

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

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

ReplyDeleteno i++ is absolutely correct

Deleteprogrm runs succesfully by taking i++.....

i++ is absolutely correct

Deleteprogram runs succesfully by taking i++

considered "i<=n" ?

ReplyDeletecan you tell me on which data structure this program is running>

ReplyDeletewhy fact = 1

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

ReplyDeletei need same algorithm but through recurssion. Please, if anyone can help me out.

ReplyDeleteRecursion is the worst way to do this ... reason is that it is the slowest and could result in stack overflow for very large numbers. Also if your factorial is only for integers and you need it to be the fastest then just compute them up front and table them ... then use the number to index into the table. Since a 32 bit number maxes out at around 4 billion and 13 factorial is beyond that then the table only needs to be 12 elements wide.

DeleteI need some of flowchart anybady can help with me

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

ReplyDeletereally helpful.

ReplyDeleteI don't know how create a programs anyone can U teach me plz.......

ReplyDeleteCan anyone say where to get the flowchart and algorithm of EMPLOYEE DETAIL USING UNION program please?

ReplyDeletei like it.

ReplyDeletethanxx

ReplyDelete