Algorithm to find factorial of a given number.

Factorial of number n is defined as follow:

      n! = 1 * 2 * 3 * 4 * ....* n

Algorithm to find factorial of a given number N:

Step 1: Start

Step 2: Declare variables: N, fact,  i.

Step 3: Initialize variables

           fact = 1

           i = 1

Step 4: Read value of N from user.

Step 5: Repeat following steps until i = N

           fact =  fact * i

           i = i + 1

Step 6: Print fact variable.

Step 7: Stop

>>> Program to convert this algorithm in to a C program.