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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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Easy
Count Pairs With a Sum
Count pairs of positions whose values add up to a target.
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Easy
Cart Total With Discount
Total a shopping cart and apply a discount above a threshold.
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Medium
Smallest Missing Coin Sum
Find the first positive amount that cannot be made from the available coins.
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