Jewels and Stones
You're given strings jewels representing the types of stones that are jewels, and stones representing the stones you have. Each character in stones is a type of stone you have. Return how many of the stones you have are also jewels.
Letters are case sensitive, so "a" is considered a different type of stone from "A".
Example 1
Input
jewels = "aA", stones = "aAAbbbb"Output
3The stones
a, A, and A are jewels, so the answer is 3.Example 2
Input
jewels = "z", stones = "ZZ"Output
0None of the stones in
stones match the jewel type z.Constraints
- 1 <= jewels.length, stones.length <= 50
- jewels and stones consist of only English letters.
- All the characters of jewels are unique.