2019-06-11 16:26:24 +08:00
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''' mbinary
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#########################################################################
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# File : lru_orderedDict.py
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# Author: mbinary
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# Mail: zhuheqin1@gmail.com
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# Blog: https://mbinary.xyz
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# Github: https://github.com/mbinary
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# Created Time: 2019-05-23 20:13
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# Description:
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#########################################################################
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'''
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2019-05-23 23:51:44 +08:00
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class LRUCache(object):
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def __init__(self, capacity):
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self.od, self.cap = collections.OrderedDict(), capacity
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def get(self, key):
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if key not in self.od: return -1
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self.od.move_to_end(key)
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return self.od[key]
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def put(self, key, value):
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if key in self.od: del self.od[key]
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elif len(self.od) == self.cap: self.od.popitem(False)
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self.od[key] = value
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