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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3.  
  4.  
  5. int main()
  6. {
  7. 	ios_base::sync_with_stdio(0);
  8. 	long long a,b,c;
  9. 	int pol = 0;
  10. 	cin >> a >> b >> c;
  11. 	for(int i = 0;i < c;++i)
  12. 	{
  13. 		if(b*2+((pol*2)/10) > a)
  14. 		{
  15. 			if(a%2 == 1)
  16. 			{
  17. 				if(pol == 5)
  18. 				{
  19. 					b += (a/2)+1;
  20. 					pol = 0;
  21. 				}
  22. 				else
  23. 				{
  24. 					b += a/2;
  25. 					pol = 5;
  26. 				}
  27. 				cout << b << '.' << pol;
  28. 				return 0;
  29. 			}
  30. 			else
  31. 			{
  32. 				b += a/2;
  33. 				cout << b << '.' << pol;
  34. 				return 0;
  35. 			}
  36. 		}
  37. 		else
  38. 		{
  39. 			a -= b*2+((pol*2)/10);
  40. 			b *= 2;
  41. 			if(pol == 5)
  42. 			{
  43. 				b++;
  44. 				pol = 0;
  45. 			}
  46. 		}
  47. 	}
  48. 	cout << b << '.' << pol;
  49. }
Success #stdin #stdout 0s 5268KB
comments (?)
stdin
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1000000000000000000 100000000000000000 1
stdout
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200000000000000000.0
https://ideone.com/dkGxDg
language:
C++14 (gcc 8.3)
created:
12 hours ago
visibility:
public

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