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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.     int n, sum = 0, rem;
  5.     printf("Enter a number: \n");
  6.     scanf("%d", &n);
  7.  
  8.     while (n > 0) {
  9.         rem = n % 10;
  10.         sum += rem;
  11.         n /= 10;
  12.     }
  13.  
  14.     printf("Sum of digits = %d\n", sum);
  15.     return 0;
  16. }
  17.  
Success #stdin #stdout 0s 5312KB
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stdin
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stdout
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Enter a number: 
Sum of digits = 6
https://ideone.com/AdbToV
language:
C (gcc 8.3)
created:
6 days ago
visibility:
public

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