Solving Leetcode Problems

Learn how to solve the Leetcode problem of id 771, whose title is Jewels and Stones, using the Java programming language.

https://leetcode.com/problems/jewels-and-stones

The Data Structures and Algorithms (DSA) lesson uses an iterative approach with a hash set to solve the problem.

First go through the array of jewels to populate a hash set with its values.

Then, go through the array of stones. Add to the count if the current stone element is a member of the set of jewels.

The time complexity for the solution is O(m + n) and its space complexity is O(n).

DSA problems are sometimes asked during tech job interviews for positions such as Software Engineer, so you can use the challenge to practice that skill.

Jewels and Stones - Leetcode 771 - Java

Learn how to solve the Leetcode problem of id 771, whose title is Jewels and Stones, using the Java programming language.

https://leetcode.com/problems/jewels-and-stones

The Data Structures and Algorithms (DSA) lesson uses an iterative approach with a hash set to solve the problem.

First go through the array of jewels to populate a hash set with its values.

Then, go through the array of stones. Add to the count if the current stone element is a member of the set of jewels.

The time complexity for the solution is O(m + n) and its space complexity is O(n).

DSA problems are sometimes asked during tech job interviews for positions such as Software Engineer, so you can use the challenge to practice that skill.
