## C Programming

### Generate all Armstrong numbers between 1 to 500

#### Objective

Write a program to all Armstrong numbers between 1 to 500. If the sum of the cubes of each digit of the number is equal to the number itself, then the number is called Armstrong number. For example: 153 = (1 * 1 * 1) + (5 * 5 * 5) + (3 * 3 * 3)

#### Problem / Solution

#include<stdio.h> int main() { int n; int dig,old,arm; for(n = 1; n <= 500; n++) { old = n; //store number into temp variable arm = 0; while(n != 0) { dig = n % 10; arm = arm + dig * dig * dig; n = n / 10; } if(old == arm) { printf("%d\t",old); } n = old; //restore number from temp } }

#### Sample Output

1 153 370 371 407