소프트웨어에 대한 모든 것

771. Jewels and Stones 문제) 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. You want to know 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". 솔루션1) class Solution: def numJewelsInStones..