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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.   int n, sum = 0;
  5.  
  6.   printf("Enter a number: ");
  7.   scanf("%d", &n);
  8.  
  9.   while (n > 0) {
  10.     sum += n % 10;
  11.     n /= 10;
  12.   }
  13.  
  14.   printf("The sum of digits is %d\n", sum);
  15.  
  16.   return 0;
  17. }
Success #stdin #stdout 0s 5280KB
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stdin
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678
stdout
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Enter a number: The sum of digits is 21
https://ideone.com/pQNB98
sum of digits of a number
language:
C (gcc 8.3)
created:
237 days ago
visibility:
public

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