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23 lines
698 B
Python
23 lines
698 B
Python
from collections import OrderedDict
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from typing import Any
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class LRUCache:
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def __init__(self, capacity: int):
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self.cache: OrderedDict[Any, Any] = OrderedDict()
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self.capacity = capacity
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def get(self, key: Any) -> Any:
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if key not in self.cache:
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return None
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else:
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self.cache.move_to_end(key) # move the key to the end of the OrderedDict
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return self.cache[key]
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def put(self, key: Any, value: Any) -> None:
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if key in self.cache:
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self.cache.move_to_end(key)
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self.cache[key] = value
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if len(self.cache) > self.capacity:
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self.cache.popitem(last=False) # pop the first item
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