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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int n;
  6. 	cin>>n;
  7. 	int s=0,c=0;
  8. 	while (n){
  9. 		s+=n%10;
  10. 		n/=10;
  11. 	}
  12. 	c=s;
  13. 	if (s<=9){
  14. 		cout << s;
  15. 		c--;
  16. 		for (int i=1; i<=c; i++) cout << '0';
  17. 	}
  18. 	else{
  19. 		while (s>9){
  20. 			cout<<'9';
  21. 			s-=9;
  22. 			c--;
  23. 		}
  24. 		cout << s;
  25. 		c--;
  26. 		for (int i=1; i<=c; i++) cout << '0';
  27. 	}
  28. 	return 0;
  29. }
Success #stdin #stdout 0s 4412KB
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https://ideone.com/QsVIGR
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
public

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