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1Find the Duplicate Numbermedium
Based onLeetCode
mediumBlind 75
Find the Duplicate Number
Find the Duplicate Number rewards precision: narrowing the search space correctly is the whole game. Interviewers love it because it reveals your boundary precision and your edge-case discipline. Interviewers care more about airtight boundaries than speed here.
Arrays & HashingTwo PointersBinary SearchBit Manipulation
👩🏫
👨💼
Meet Allison & Tim
Your AI coaches
Practice coding interviews out loud with real-time voice coaching. Your code actually runs.
Free · No sign up · Early access
1Find the Duplicate Numbermedium
Based onLeetCode
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