program5.cpp

//10. Write a program to print all Armstrong numbers under 1000

#include<stdio.h>

int main()
{
   int rem,sum=0,count=0,res,i,j,k,x;

    printf("\n Armstrong number under 1000 are : ");

   //Loop to find armstrong numbe under 1000
   for(i=1;i<=1000;i++)
   {
     x = i;
     count = 0;
     sum = 0;

    //Loop counting number of digits in the given number
     while(x!=0)
     {
      count++;
      x = x/10;
     }

      x = i;  //restoring original value of x

    //Loop to check whether the 'i' is armstrong number or not.
     for(j=1;j<=count;j++)
     {
      res = 1;
      rem = x%10;
      for(k=1;k<=count;k++)
       res = res*rem;

      sum = sum + res;
      x = x/10;
     }

     //Printing armstrong number only
     if(sum==i)
      printf(" %d ",sum);
   } 

   return 0;

}