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  1. // Level 1 - Homework 1 - Question U - Solution 1.
  2. #include <iostream>
  3. #include <string>
  4.  
  5. using namespace std;
  6.  
  7. int main()
  8. {
  9. 	int N = 0;
  10. 	int A = 0;
  11. 	int B = 0;
  12. 	cin >> N >> A >> B;
  13.  
  14. 	int Answer = 0;
  15. 	for(int i = 1; i <= N; ++i)
  16. 	{
  17. 		int Sum = 0;
  18. 		int Helper = i;
  19. 		while(Helper > 0)
  20. 		{
  21. 			Sum += Helper % 10;
  22. 			Helper /= 10;
  23. 		}
  24.  
  25. 		if(Sum >= A && Sum <= B)
  26. 			Answer += i;
  27. 	}
  28.  
  29. 	cout << Answer << endl;
  30.  
  31. 	return 0;
  32. }
Success #stdin #stdout 0.01s 5288KB
comments (?)
stdin 
100 4 16
stdout 
4554
https://ideone.com/uD4vWu
language:
C++ (gcc 8.3)
created:
19 days ago
visibility:
public

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