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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.
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Medium
Two Nonattacking Knights
Count safe placements of two knights for each square board size.
No solutions yet
Medium
Count Grid Paths
Count routes across a rectangular grid using only right and down moves.
No solutions yet
Medium
Count Coin Combinations
Count ways to make an amount with unlimited coins of specified denominations.
No solutions yet
Easy
Pascal’s Triangle
Build rows by adding neighboring entries from the previous row.
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Easy
Count Handshakes
Count handshakes when every pair of people shakes hands once.
No solutions yet