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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. bool identical(vector<int>v,int k){
  5. 	map<int,int>m;
  6. 	for(int i=0;i<v.size();i++){
  7. 		for(int j=i+1;j<v.size();j++){
  8. 			if(v[i]==v[j] && j-i<=k)return true;
  9. 		}
  10. 	}
  11. 	return false;
  12. }
  13.  
  14. int main() {
  15. 	// your code goes here
  16. 	int n;cin>>n;
  17. 	vector<int>v(n);
  18. 	for(int i=0;i<n;i++)cin>>v[i];
  19. 	int k;cin>>k;
  20. 	if(identical(v,k)){
  21. 		cout<<"YES"<<endl;
  22. 	}else{
  23. 		cout<<"NO"<<endl;
  24. 	}
  25. 	return 0;
  26. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin 
5
3 1 2 3 4
2
stdout 
NO
https://ideone.com/h0jClv
language:
C++14 (gcc 8.3)
created:
7 hours ago
visibility:
public

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