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  1. #include <iostream>
  2. #include <vector>
  3. #include <iterator>
  4.  
  5. using namespace std;
  6.  
  7. int main()
  8. {
  9. 	int size_of_the_sequence;
  10. 	int temp = 0; //счетчик
  11. 	cin >> size_of_the_sequence;	
  12. 	vector<double> v1 (size_of_the_sequence);
  13. 	vector<double> v2;
  14. 	bool h = true, l = true;
  15. 	for (int i = 0; i < size_of_the_sequence; i++)
  16. 	{
  17. 		cin >> v1[i];
  18. 		if (i % 4 == 0) temp++;
  19. 	}
  20. 	for (int i = 1; i < size_of_the_sequence; i++)
  21. 	{
  22. 		if (v1[i - 1] <= v1[i])
  23. 		{
  24. 			l = false;
  25. 		}
  26. 		if (v1[i - 1] >= v1[i])
  27. 		{
  28. 			h = false;
  29. 		}
  30. 	}
  31. 	if (!l && !h)//исходная последовательность не упорядочена ни по возрастанию, ни по убыванию
  32. 	{
  33. 		v2.resize(size_of_the_sequence - temp);
  34. 		int size_of_the_sequence = 0;
  35. 		for (int i = 0; i < v1.size(); i++)
  36. 		{
  37. 			if (i % 4 == 0) { size_of_the_sequence++; continue; }
  38. 			else v2[i - size_of_the_sequence] = v1[i];
  39. 		}
  40. 		v1.resize(size_of_the_sequence - temp);
  41. 		v1 = v2;
  42. 		v1.shrink_to_fit();
  43. 		v2.clear();
  44. 	}
  45. 	copy(v1.begin(), v1.end(), ostream_iterator<double>(cout, " "));//выводим исходную последовательность без измений
  46. 	return 0;
  47. }
Success #stdin #stdout 0s 3464KB
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stdin
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3
-23 46 -80
stdout
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46 -80
https://ideone.com/mbzK4K
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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