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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. int main() {
  5.     int n, sum = 0, temp, rem, digits = 0;
  6.     printf("Enter a number: \n");
  7.     scanf("%d", &n);
  8.     temp = n;
  9.  
  10.     while (temp > 0) {
  11.         digits++;
  12.         temp /= 10;
  13.     }
  14.  
  15.     temp = n;
  16.     while (temp > 0) {
  17.         rem = temp % 10;
  18.         sum += pow(rem, digits);
  19.         temp /= 10;
  20.     }
  21.  
  22.     if (sum == n)
  23.         printf("%d is an Armstrong number\n", n);
  24.     else
  25.         printf("%d is not an Armstrong number\n", n);
  26.     return 0;
  27. }
  28.  
Success #stdin #stdout 0.01s 5296KB
comments (?)
stdin 
153
stdout 
Enter a number: 
153 is an Armstrong number
https://ideone.com/BRHzTt
language:
C (gcc 8.3)
created:
6 days ago
visibility:
public

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