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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. int num,temp,rem,sum=0;
  5.  
  6. printf("enter a number : ");
  7. scanf("%d",&num);
  8.  
  9. temp=num;
  10.  
  11. while(temp!=0){
  12.     rem=temp%10;
  13.     sum=sum+rem;
  14.     temp=temp/10;
  15. }
  16.  
  17. printf("sum of digits: %d",sum);
  18.  
  19. 	return 0;
  20. }
  21.  
Success #stdin #stdout 0s 5320KB
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stdin
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Standard input is empty
stdout
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enter a number : sum of digits: 22
https://ideone.com/kAxEUa
language:
C (gcc 8.3)
created:
3 days ago
visibility:
public

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