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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	// your code goes here
  6. 	int n ;
  7. 	int k ;
  8. 	cin >> n >> k ;
  9. 	vector<int> v(n);
  10. 	for(auto &val : v) cin >> val ;
  11. 	bool flag=0;
  12. 	unordered_map<int,int> mp ;
  13.  
  14. 	for(int i=0 ;i<n ;i++){
  15. 		if(mp.find(v[i])!=mp.end()){
  16. 			if(i-mp[v[i]]<=k){
  17. 				flag=1 ;
  18. 				break;
  19. 			}
  20. 		}
  21.  
  22. 		mp[v[i]]=i;
  23.  
  24. 	}
  25. 	if(flag) cout << "Present\n";
  26. 	else cout << "Not Present\n";
  27. 	return 0;
  28. }
Success #stdin #stdout 0s 5324KB
comments (?)
stdin
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7 3
1 3 8 5 1 7 6
stdout
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Not Present
https://ideone.com/mJzFxq
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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