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  1. //#include<bits/stdc++.h>
  2. #include<iostream>
  3. #include<string>
  4. #include<iomanip>
  5. #include<cmath>
  6. #include<algorithm>
  7. using namespace std;
  8. //Do whatever you can ^^
  9. int max(int arr[], int n)
  10. {
  11. 	int max = arr[0];
  12. 	for (int i = 1; i < n; i++)
  13. 	{
  14. 		if (max < arr[i])
  15. 			max = arr[i];
  16. 	}
  17. 	return max;
  18. }
  19. int min(int arr[], int n)
  20. {
  21. 	int min = arr[0];
  22. 	for (int i = 1; i < n; i++)
  23. 	{
  24. 		if (min> arr[i])
  25. 			min = arr[i];
  26. 	}
  27. 	return min;
  28. }
  29. int main()
  30. {
  31. 	//cout << fixed << setprecision(9);	
  32. 	//freopen("Files.in", "r", stdin);
  33. 	//freopen("Files.out", "w", stdout);
  34. 	std::ios_base::sync_with_stdio(NULL);
  35. 	cin.tie(NULL); cout.tie(NULL);
  36. 	int n;
  37. 	cin >> n;
  38. 	long long arr[1000000];
  39. 	for (int i = 0; i < n; i++)
  40. 	{
  41. 		cin >> arr[i];
  42. 	}
  43. 	for (int i = 0; i < n - 1; i++)
  44. 	{
  45. 		if (arr[i] == arr[i + 1])
  46. 		{
  47. 			arr[i] = 0;
  48. 			arr[i + 1] = 0;
  49. 		}
  50. 	}
  51. 	for (int i = 0; i < n; i++)
  52. 	{
  53. 		if (arr[i] != 0)
  54. 		{
  55. 			cout << "NO\n";
  56. 			return 0;
  57.  
  58.  
  59. 		}
  60.  
  61. 	}
  62. 		cout << "YES\n";
  63.  
  64. //	system("pause");
  65. }
Success #stdin #stdout 0s 22928KB
comments (?)
stdin
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Standard input is empty
stdout
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YES
https://ideone.com/fHucMN
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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