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

Math Decision Making Simulation

Beginner

Implement the `validateBookingCapacity` method that checks whether a booking request fits within the available capacity.

Math Decision Making Simulation

Beginner

Implement the `meetingOverlapCheck` method that checks whether two time intervals overlap.

Loop Array Linear Search

Beginner

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

Loop Array Counting

Beginner

Implement the method `countEvenNumbers` that returns how many even numbers are in an array.

Math Conversion

Beginner

Implement the method `celsiusToFahrenheit` that converts Celsius to Fahrenheit.

Beginner

Implement the method `sumOfSquares` that returns the sum of squares from 1 to n.

String Counting

Beginner

Implement the method `countWords` that returns the number of words in a string.

Beginner

Implement the method `calculateCircleArea` that takes the radius of a circle as a `float` and returns its area.

Beginner

Implement the method `sumDigits` that takes an integer as input and returns the sum of its digits.

Math Decision Making

Beginner

Implement the method `isEven` that takes an integer as input and returns `true` if the number is even, and `false` if it is odd.