Thursday, 22 August 2013

Armstrong number c program


Armstrong number c program

A number is armstrong if the sum of cubes of individual digits of a number is equal to the number itself. For example 371 is an armstrong number as 33 + 73 + 13 = 371. Some other armstrong numbers are: 0, 1, 153, 370, 407.

C programming code

#include <stdio.h>

int main()
{
   int number, sum = 0, temp, remainder;

   printf("Enter an integer\n");
   scanf("%d",&number);

   temp = number;

   while( temp != 0 )
   {
      remainder = temp%10;
      sum = sum + remainder*remainder*remainder;
      temp = temp/10;
   }

   if ( number == sum )
      printf("Entered number is an armstrong number.\n");
   else
      printf("Entered number is not an armstrong number.\n");

   return 0;
}
Output of program:
Enter an integer
371
Entered number is an armstrong number
-------------------------------**************************----------------------------------------

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