Code Challenges

Get better at coding with practice problems.

Coding Challenges

Select a problem, write code, run test cases, and submit your solution.

Start with beginner challenges

Array Linear Search Sorting

Learner

Implement the `findSmallestMissingPositiveSorted` method that finds the smallest positive integer missing from a sorted array.

Loop Array Linear Search

Learner

Implement the `lastIndexOfTarget` method that returns the last index where the target value appears.

Loop Array Linear Search

Beginner

Implement the `linearSearchIndex` method that returns the first index of the target using linear search.

Loop Array Linear Search

Learner

Implement the method `findSecondLargest` that returns the second largest distinct integer in an array.

Array Linear Search

Learner

Implement the method `findMax` that takes an array of integers and returns the largest (maximum) value in the array.