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  1. #include <iostream>
  2. #include <cmath>
  3.  
  4. using namespace std;
  5.  
  6. #define FOR(i,a,b) for(int i=a; i<=b; i++)
  7.  
  8. typedef long long LL;
  9.  
  10. int main()
  11. {
  12. 	double A,B;
  13. 	LL a,b;
  14.  
  15. 	cin>>A>>B;
  16.  
  17. 	a = ceil(A);
  18. 	b = floor(B);
  19.  
  20. 	LL t = 0;
  21.  
  22. 	FOR(i,a,b)
  23. 	{
  24. 		t += i*i;
  25. 	}
  26.  
  27. 	cout<<t <<endl;
  28.  
  29. 	return 0;
  30. }
Success #stdin #stdout 0s 3460KB
comments (?)
stdin 
0.3 2.89
stdout 
5
https://ideone.com/qpBnHG
TITO2 - Tính tổng 2 (OLP Không Chuyên 2014) [#6]
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
secret

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