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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. typedef long long int ll;
  4. #include<vector>
  5.  
  6. int main() {
  7. 	// your code goes here
  8.     vector<int>arr={6,2,3,6,4,5};
  9. 	unordered_map<int,int>mp;
  10. 	int k;
  11. 	cin>>k;
  12. 	int flag=0;
  13. 	int n=arr.size();
  14. 	for(int i=0;i<n;i++)
  15. 	 {
  16. 	 	if(mp.find(arr[i])!=mp.end())
  17. 	 	 {
  18. 	 	 	if(i-mp[arr[i]]<=k)
  19. 	 	 	 {
  20. 	 	 	 	flag=1;
  21. 	 	 	 	break;
  22. 	 	 	 }
  23. 	 	 }
  24. 	 	 mp[arr[i]]=i;
  25. 	 }
  26.  
  27. 	 if(flag==0)
  28. 	  {
  29. 	  	cout<<"false";
  30. 	  }else
  31. 	   cout<<"true";
  32.  
  33.  
  34. 	return 0;
  35. }
Success #stdin #stdout 0s 5312KB
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https://ideone.com/njlewp
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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