CodeUtility
Making your developer's life easier!

Programming Challenges

Strengthen your problem-solving skills with language-neutral challenges you can solve in Python, C++, or C#. Every submission is checked by automated tests and reviewed by AI.

  • Python · C++ · C#
  • Automated tests
  • AI code review
  • Community solutions
Learning path
150
Challenges
0
Solutions shared
3
Languages

All challenges

Search by topic, language, or difficulty.

150 challenges
Hard

Shortest Delivery Tour

Visit every city once and return home as cheaply as possible.

AdvancedBitmasksCompetitive-programmingDynamic-programming
Python C++ C#
0 solved
No solutions yet
Hard

Minimum Network Connection Cost

Choose undirected links so that every vertex can reach every other vertex, with minimum total cost.

Disjoint-setsGraphsMinimum-spanning-tree
Python C++ C#
0 solved
No solutions yet
Hard

Maximum Project Rewards

Choose nonoverlapping projects to earn the largest total reward.

Dynamic-programmingScheduling
Python C++ C#
0 solved
No solutions yet
Medium

Shortest Weighted Routes

Find the minimum total route cost from city 1 to each city.

GraphsPriority-queuesShortest-path
Python C++ C#
0 solved
No solutions yet
Hard

Course Schedule Order

Order courses so every prerequisite comes first.

AdvancedGraphsHackathonTopological-sort
Python C++ C#
0 solved
No solutions yet
Hard

Mini Stack-Language Interpreter

Evaluate a small stack language.

InterpretersParsingStacks
Python C++ C#
0 solved
No solutions yet
Hard

Strongly Connected Components

Count groups of nodes that can all reach each other.

AdvancedCompetitive-programmingGraphs
Python C++ C#
0 solved
No solutions yet
Hard

Hotel Room Allocation

Assign arriving groups in order.

Segment-treesSimulation
Python C++ C#
0 solved
No solutions yet
Medium

Count Islands

Count groups of connected land cells in a grid.

BeginnerGridsLearning-pathRecursion
Python C++ C#
0 solved
No solutions yet
Hard

Longest Path in a DAG

Find the heaviest path in a task dependency graph.

AdvancedGraphsHackathonTopological-sort
Python C++ C#
0 solved
No solutions yet
Hard

Word Break

Decide whether text can be split into dictionary words.

AdvancedDynamic-programmingHackathonStrings
Python C++ C#
0 solved
No solutions yet
Medium

Game of Life Step

Advance Conway's Game of Life by one generation.

AdvancedGridsHackathonSimulation
Python C++ C#
0 solved
No solutions yet
Hard

Matrix Chain Multiplication

Find the cheapest order to multiply a chain of matrices.

AdvancedCompetitive-programmingDynamic-programming
Python C++ C#
0 solved
No solutions yet
Hard

Count Inversions

Count the out-of-order pairs in a list.

AdvancedCompetitive-programmingSorting
Python C++ C#
0 solved
No solutions yet
Medium

Factory Production Time

Find the earliest time parallel machines can finish a target number of items.

AlgorithmsBinary-search
Python C++ C#
0 solved
No solutions yet
Medium

Longest Common Subsequence Length

A subsequence is formed by deleting zero or more elements while preserving the order of the remaining elements.

Dynamic-programmingSequences
Python C++ C#
0 solved
No solutions yet
Easy

Doubling Grains on a Chessboard

Calculate a square’s grain count and the total on all 64 squares.

NumbersSequences
Python C++ C#
0 solved
No solutions yet
Hard

Median of Two Sorted Arrays

Find the median of two sorted lists combined.

AdvancedBinary-searchCompetitive-programming
Python C++ C#
0 solved
No solutions yet