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
Binary Search medium

Ternary Search

Implement ternary search to locate the maximum of a discrete unimodal function.

ternary-search binary-search unimodal
+25 pts 30m
Binary Search medium

Find Minimum in Rotated Sorted Array

Implement a function that finds the minimum element in a rotated sorted array of distinct integers in O(log n) time.

binary-search arrays rotation
+25 pts 30m
Binary Search medium

Find in Mountain Array

Implement a function to search for a target value in a mountain array using binary search.

binary-search bitonic-array array-traversal
+25 pts 25m
Binary Search medium

Binary Search on Answer: Find the Minimal Maximum Subarray Sum

Implement a function that finds the minimal possible maximum subarray sum when splitting an array into at most k contiguous subarrays.

binary-search arrays greedy
+25 pts 25m
Binary Search easy

Upper Bound Binary Search

Write a function that returns the index of the first element greater than a target in a sorted list.

binary-search arrays searching
+8 pts 12m
Binary Search medium

Rotated Array Search II

Implement a function to search for a target in a rotated sorted array with possible duplicates.

binary-search array search
+20 pts 20m
Binary Search easy

First Bad Version

Implement a function to find the first bad version in a sorted range using binary search.

binary-search search array
+10 pts 15m
Binary Search medium

Book Allocation: Minimize Maximum Pages

Implement a function that returns the minimized maximum pages when allocating a list of books to k students.

binary-search greedy arrays
+30 pts 30m

Showing 1–8 of 8 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.