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Submit your coding solutions and get instant AI feedback on code quality, time complexity, edge cases, and interview best practices.

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solution.py
def two_sum(nums, target):
    seen = {}
    for i, n in enumerate(nums):
        diff = target - n
        if diff in seen:
            return [seen[diff], i]
        seen[n] = i

✓ O(n) time complexity — optimal

→ Add type hints for interview clarity

→ Consider edge case: empty array

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$9

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  • ✓Unlimited code submissions
  • ✓AI feedback on quality & performance
  • ✓Time & space complexity analysis
  • ✓Edge case detection
  • ✓Interview best practices tips
  • ✓Support for 10+ languages
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FAQ

Which programming languages are supported?

We support Python, JavaScript, TypeScript, Java, C++, Go, Rust, Ruby, and more. The AI understands language-specific idioms and best practices.

How does the AI feedback work?

You paste your solution and our AI analyzes it for correctness, time/space complexity, readability, edge cases, and common interview pitfalls — returning structured feedback in seconds.

Can I cancel my subscription anytime?

Yes. Cancel anytime from your billing portal with no questions asked. You keep access until the end of your billing period.