Solution: Jewels and Stones
Explore how to solve the Jewels and Stones problem by applying hash maps for fast membership queries. Understand how to implement a case-sensitive count of jewels within stones, improve algorithm efficiency with sets, and analyze time and space complexity.
We'll cover the following...
We'll cover the following...
Statement
You are given two strings, jewels and stones. Each character in jewels represents a stone type that is a jewel, and each character in stones represents a stone you have. Count how many characters in stones belong to the set of characters in jewels.
Note: Matching is case-sensitive, so
'a'and'A'are different types of stones.
Constraints:
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