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15 lines
418 B
Python
15 lines
418 B
Python
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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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