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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. int main()
  5. {
  6.     int n, original, digit, digits = 0;
  7.     int sum = 0;
  8.     printf("Enter a number: ");
  9.     scanf("%d", &n);
  10.     original = n;
  11.     int temp = n;
  12.     while (temp != 0)
  13.     {
  14.         digits++;
  15.         temp /= 10;
  16.     }
  17.     temp = n;
  18.     while (temp != 0)
  19.     {
  20.         digit = temp % 10;
  21.         sum += (int)pow(digit, digits);
  22.         temp /= 10;
  23.     }
  24.  
  25.     if (sum == original)
  26.         printf("%d is an Armstrong number.\n", original);
  27.     else
  28.         printf("%d is not an Armstrong number.\n", original);
  29.  
  30.     return 0;
  31. }
  32.  
Success #stdin #stdout 0.01s 5324KB
comments (?)
stdin
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153
stdout
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Enter a number: 153 is an Armstrong number.
https://ideone.com/qTaOhO
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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