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Python Coding Challenges

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467 challenges 330 easy 120 medium 17 hard
Dynamic Programming medium

Kadane Variant: Maximum Product Subarray

Implement max_product_subarray(nums) that returns the maximum product of any contiguous subarray.

kadane subarray product
+30 pts 25m
Dynamic Programming medium

Max Profit from Selling Twice

Compute the maximum profit that can be achieved by completing at most two buy-sell transactions on a given price array.

dynamic programming arrays stock
+28 pts 30m
Dynamic Programming easy

Min cost climbing stairs

Compute the minimum total cost to reach the top of a staircase, given you can climb 1 or 2 steps at a time.

dynamic programming memoization array
+10 pts 15m
Dynamic Programming easy

House Robber

Given a list of house values, return the maximum sum you can rob without robbing two adjacent houses.

dynamic-programming arrays optimization
+10 pts 15m
Dynamic Programming medium

House Robber Circular

Solve the House Robber problem with houses arranged in a circle.

dynamic-programming arrays circular
+25 pts 30m
Dynamic Programming medium

Unique Paths with Obstacles

Given a 2D grid with obstacles, count the unique paths from top-left to bottom-right moving only down or right.

dynamic-programming grid 2d-array
+25 pts 25m
Dynamic Programming easy

Triangle Minimum Path

Compute the minimum path sum from top to bottom of a triangle given as a list of lists.

dynamic-programming bottom-up arrays
+12 pts 20m
Dynamic Programming medium

Maximal square

Given a 2D binary matrix of 0s and 1s, compute the area of the largest square containing only 1s.

dynamic-programming matrix maximal-square
+30 pts 30m
Dynamic Programming medium

Paint House Colors

Given a cost matrix, compute the minimum total cost to paint all houses with no two adjacent houses having the same color.

dynamic-programming optimization arrays
+20 pts 25m

Showing 9 challenges · Dynamic Programming

Dynamic Programming — Python coding challenges

What you will find here

This page lists dynamic programming 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.