#771

Jewels and Stones

newbie · 100 · lc easy +12 · verified · 89.5% accepted · 5,449 likes · top 99%

Description

You are given a string jewels listing the types of stones that count as jewels, and a string stones representing your collection. Count how many stones in your collection are also jewels. Matching is case-sensitive ("a" and "A" are different types).

Example 1:

Input: jewels = "aA", stones = "aAAbbbb"
Output: 3

Example 2:

Input: jewels = "z", stones = "ZZ"
Output: 0

Code

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