class Solution(object):def numJewelsInStones(self, J, S):""":type J: str:type S: str:rtype: int"""count=collections.Counter(S)ans=0for j in J:ans+=count.get(j,0)return ans
class Solution(object):def numJewelsInStones(self, J, S):""":type J: str:type S: str:rtype: int"""count=collections.Counter(S)ans=0for j in J:ans+=count.get(j,0)return ans
转载于:https://www.cnblogs.com/zywscq/p/10562590.html
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