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
Dynamic Programming medium

Interleaving string

Given three strings s1, s2, and s3, check if s3 is formed by interleaving s1 and s2 while preserving the order of each input string.

dynamic-programming strings dp
+30 pts 30m
Dynamic Programming medium

Count subsets with sum

Given a list of integers and a target sum, count how many subsets of the list sum to the target.

subset-sum dynamic-programming counting
+20 pts 25m
Dynamic Programming medium

Matrix Chain Multiplication

Given a list of matrix dimensions, compute the minimum multiplication cost using dynamic programming.

matrix dynamic-programming optimization
+30 pts 25m
Dynamic Programming medium

Target sum assignments

Given a list of integers and a target, count how many ways to assign + or - to each number so the total equals the target.

dynamic programming combinatorics arrays
+30 pts 25m
Dynamic Programming medium

Subset Sum Exists

Given a list of positive integers and a target sum, return whether some subset adds up exactly to the target.

subset sum dynamic programming knapsack
+25 pts 30m
Dynamic Programming medium

Delete and Earn

Given an array of integers, find the maximum points you can earn by repeatedly deleting a number and all its adjacent values.

dynamic-programming array hash-map
+30 pts 25m
Dynamic Programming medium

Maximal rectangle in matrix

Given a matrix of 0s and 1s, compute the area of the largest rectangle consisting only of 1s.

dynamic programming binary matrix histogram
+25 pts 30m
Dynamic Programming medium

Minimum Path Sum Matrix

Implement a function that computes the minimum path sum from the top-left to the bottom-right of a grid moving only right or down.

dynamic-programming matrix path
+20 pts 25m
Dynamic Programming medium

Dungeon Game Minimum Health

Compute the minimum initial health needed to reach the bottom-right corner of a dungeon grid without health dropping to zero or below.

dynamic-programming matrix grid
+30 pts 30m

Showing 25–33 of 33 challenges · medium · 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.