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  1. #include <bits/stdc++.h>
  2. #define int long long
  3. using namespace std;
  4.  
  5. signed main() {
  6. 	ios_base::sync_with_stdio(0);
  7. 	cin.tie(0);
  8. 	int n, k;
  9. 	cin >> n >> k;
  10. 	int a[n];
  11. 	for (int i = 0; i < n; ++i) {
  12. 		cin >> a[i];
  13. 	}
  14. 	map <int, int> mp;
  15. 	int l = 0, res = 0;
  16. 	for (int r = 0; r < n; ++r) {
  17. 		++mp[a[r]];
  18. 		while (mp[a[r]] > k) {
  19. 			++l;
  20. 			--mp[a[l]];
  21. 		}
  22. 		res = max(res, r - l + 1);
  23. 	}
  24. 	cout << res;
  25. 	return 0;
  26. }
Success #stdin #stdout 0s 5268KB
comments (?)
stdin
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5 3
7 7 7 7 7
stdout
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3
https://ideone.com/S8LZ6h
language:
C++ (gcc 8.3)
created:
7 days ago
visibility:
public

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