Jewels and Stones | Python

Prerequisites for solving this particular question: String Immutability & count method | Python | Castor Classes https://www.youtube.com/watch?v=Am1vX... Iterate over a list & string | List in Python | Part 4 | Castor Classes https://www.youtube.com/watch?v=4Zrfk... You can get the problem statement here: https://leetcode.com/problems/jewels-... Python for beginners: https://www.youtube.com/watch?v=egq7Z...

Code:

class Solution:

    def numJewelsInStones(self, J: str, S: str) -> int:

        c=0;

        for i in J:

            c+=S.count(i);

        return c;

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