roma-dxunvrs
17 lines
526 B
Markdown
17 lines
526 B
Markdown
Leetcode #362 | #Medium | [[Очередь]] | [[Интервалы]] | [[Design]]
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## Идея
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Аналог [[Number of Recent Calls]], также очередь
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## [[Big-O]]
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- Время ```O(1)```
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- Память ```O(W)```
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## Код
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```Java
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public class HitCounter {
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private Queue<Integer> q = new ArrayDeque<>();
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public void hit(int timestamp) { q.offer(timestamp); }
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public int getHits(int timestamp) {
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while (!q.isEmpty() && q.peek() <= timestamp - 300) q.poll();
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return q.size();
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}
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}
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``` |