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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int n, k;
  6. 	cin>>n>>k;
  7. 	string s;
  8. 	cin>>s;
  9. 	vector<int> dp(n, 1);
  10. 	int maxLength=1, maxIndex=0;
  11. 	// dp[1]=1;
  12. 	for(int i=1;i<n;i++){
  13. 		if(abs(s[i]-s[i-1])<=k)
  14. 			dp[i]=dp[i-1]+1;
  15. 		else
  16. 			dp[i]=1;
  17.  
  18. 		if(dp[i]>maxLength){
  19. 			maxLength=dp[i];
  20. 			maxIndex=i;
  21. 		}
  22. 	}
  23. 	int startIndex = maxIndex - maxLength + 1;
  24.     cout << s.substr(startIndex, maxLength) << endl;
  25. 	return 0;
  26. }
Success #stdin #stdout 0.01s 5320KB
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https://ideone.com/JePmPN
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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