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  1. /*
  2. وَلَا تُخْزِنِي يَوْمَ يُبْعَثُونَ•يَوْمَ لَا يَنفَعُ مَالٌ وَلَا بَنُونَ•إِلَّا مَنْ أَتَى اللَّهَ بِقَلْبٍ سَلِيم❤
  3. */
  4. #include <bits/stdc++.h>
  5. #define ll long long
  6. #define el endl
  7. using namespace std;
  8. void saf_sofa()
  9. {
  10.     if (fopen("in.txt", "r"))
  11.     {
  12.         freopen("in.txt", "r", stdin);
  13.         freopen("out.txt", "w", stdout);
  14.     }
  15.     ios_base::sync_with_stdio(false);
  16.     cin.tie(NULL);
  17. }
  18. int dx[] = { 0, 0, 1, -1, 1, 1, -1, -1 };
  19. int dy[] = { -1, 1, 0, 0, -1, 1, 1, -1 };
  20.  
  21.  
  22. void solve()
  23. {
  24. 	string s;
  25. 	cin >> s;
  26. 	bool f = 1;
  27. 	for (int i = 0; i < s.size(); i++)
  28. 	{
  29. 		if (s[i] == s[i + 1])
  30. 		{
  31. 			f = 0;
  32. 			break;
  33. 		}
  34. 	}
  35. 	if (f)
  36. 		cout << "YES" << el;
  37. 	else
  38. 		cout << "NO";
  39. }
  40. int main()
  41. {
  42. 	saf_sofa();
  43. 	int t_ = 1;
  44. 	// cin >> t_;
  45. 	while (t_--)
  46. 	{
  47. 		solve();
  48. 	}
  49. }
  50. /*
  51.  
  52. وَليتَ الذي بَيني وبينَك عامِرٌ وبَيني وبَينَ العَـٰالمينَ خرَابُ
  53.  
  54. */
Success #stdin #stdout 0s 5324KB
comments (?)
stdin
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hello
stdout
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NO
https://ideone.com/iWHS3X
language:
C++ (gcc 8.3)
created:
2 hours ago
visibility:
public

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