石頭和珠寶

LeetCode 刷題問題描述 解決代碼：    public static int numJewelsInStones(String J, String S) {  int K = 0,m = 0;int l=0;int ln = 0;  int num = 0;  int result =0;  int jlenth = J.length();  int slenth = S.length()

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