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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
Smallest Missing Coin Sum
Find the first positive amount that cannot be made from the available coins.
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Easy
Make an Array Nondecreasing
Find the fewest increments needed so each value is at least the previous one.
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Easy
Pascal’s Triangle
Build rows by adding neighboring entries from the previous row.
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Easy
Odd, Even, or Neither
Classify a number by whether it is an odd integer, an even integer, or neither.
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