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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
Count Coin Combinations
Count ways to make an amount with unlimited coins of specified denominations.
No solutions yet
Easy
Classify a Number by Its Divisors
Classify a positive integer as perfect, abundant, or deficient.
No solutions yet
Easy
Count Handshakes
Count handshakes when every pair of people shakes hands once.
No solutions yet
Easy
Armstrong Number
Check whether a number equals the sum of its digits raised to the digit count.
No solutions yet
Medium
Can We Split Into Two Teams?
Decide whether people can be assigned to two teams so that each listed pair is on opposite teams.
No solutions yet