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🎯Missions
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beginner🎯 15 minmissionRank 01PRO
Break the Division Function
This division function works for most inputs. Find the inputs that break it.
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intermediate🎯 20 minmissionRank 01PRO
Fix the Broken Sort
The array sorting function at Nebula Corp is producing wrong results for certain inputs. Engineers have reported that numeric arrays come back in the wrong order. Dig into the code, find the bug, and fix it.
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intermediate🎯 20 minmissionRank 01PRO
Speed Up Fibonacci
The recursive Fibonacci function is too slow for large inputs. Optimize it.
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beginner🎯 20 minmissionRank 01PRO
Test the Email Validator
Write test cases for Nebula Corp's email validation function.