Practice Arena

Python Coding
Challenges

Write real Python in the browser. Instant feedback. From beginner to expert.

925 challenges 556 easy 323 medium 46 hard

All Easy Medium Hard

All Python Basics Strings & Text Lists & Arrays Dicts & Sets Functions & Closures OOP & Classes Data Structures & Algorithms Advanced Python Iterators & Generators Decorators & Context Managers Error Handling & Exceptions Regular Expressions Math & Number Theory Bit Manipulation Dynamic Programming Trees & Binary Trees Graphs & Graph Algorithms Recursion & Backtracking Greedy Algorithms Binary Search Two Pointers & Sliding Window Stacks & Queues Heaps & Priority Queues Linked Lists Matrix & 2D Arrays Datetime & Time Calculations Data Formats & Parsing SQL & SQLite Numpy & Vectorized Computing Cryptography & Hashing

Binary Search medium

Nth Magical Number

Given three integers n, a, b, return the nth positive integer that is divisible by either a or b.

binary-search math counting

Binary Search medium

Find k Closest Elements to Target

Return exactly k elements from a sorted list that are closest to a given target, preserving order.

binary-search sorting two-pointers

Binary Search medium

Minimum Limit of Balls in a Bag

Given an array of bag sizes and a number of allowed splits, find the minimum possible maximum bag size.

binary-search arrays optimization

Showing 25–27 of 27 challenges · Binary Search

Binary Search — Python coding challenges

What you will find here

This page lists binary search challenges — real Python problems you solve in the browser IDE with instant test feedback. Each challenge includes a clear brief, starter code, and automated checks.

Challenges vs tutorials and quizzes

Challenges test what you can build under constraints. For guided teaching, use our Python tutorials. For quick checks, try quizzes or copy snippets from code samples.