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设计LRU(最近最少使用)缓存结构,可参考如下模板
```js
class LRUCache {
constructor(capacity: number) {
// write code here
}
get(key: number): number {
// write code here
}
s…
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- 位运算
![image](https://user-images.githubusercontent.com/21017339/80852661-cfd5da00-8c5c-11ea-9de0-95cd6a8500c0.png)
- 布隆过滤器
![image](https://user-images.githubusercontent.com/21017339/80852663-d…
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Design a data structure that follows the constraints of a [Least Recently Used (LRU) cache](https://en.wikipedia.org/wiki/Cache_replacement_policies#LRU).
Implement the LRUCache class:
LRUCache(…
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运用你所掌握的数据结构,设计和实现一个 LRU (最近最少使用) 缓存机制。它应该支持以下操作: 获取数据 `get` 和写入数据 `put` 。
获取数据 `get(key)` - 如果密钥 ( `key` ) 存在于缓存中,则获取密钥的值(总是正数),否则返回 `-1` 。
写入数据 `put(key, value)` - 如果密钥不存在,则写入数据。当缓存容量达到上限时,它应该在写入…
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设备机型:OPPO 机型版本:PDKM00 系统版本:11
at java.util.LinkedHashMap$LinkedHashIterator.nextNode(LinkedHashMap.java:759)
at java.util.LinkedHashMap$LinkedEntryIterator.next(LinkedHashMap.java:790)
at j…
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### Issue description
I use the official documents to deploy the go plug-in and mount the local address of the go runner into the docker. After starting apisix through the docker, I check the log a…
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Hi, reading your code I saw that you have the `lock` defined as `AbstractContextManager `
```python
def cached(
cache: Optional[MutableMapping[_KT, Any]],
# ignoring the mypy error to be…
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Is there any specific reason for using Array instead of Doubly Linked List implementation.
Right now the time complexities for `get` function is `O(n)`, and not sure about the `set` function complexi…
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``` c
usage_ += charge;
```
I think this better:
``` c
usage_ += charge + (sizeof(LRUHandle)-1 + key.size());
```
yandd updated
8 years ago
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其实以前写过LruCache的源码解析,但是已经被认领了,所以挑了个软柿子