target: [2, 7, 5][2, 5, 3][1, 8, 4][1, 7, 5]β€’β€’
mediumGrind 75

Merge Triplets to Form Target Triplet

This one looks straightforward, but it quietly checks whether you reach for the right lookup structure. Interviewers love it because it reveals your data-structure instincts and your edge-case discipline. The signal here is clean bookkeeping: know what you record and when you update it.

Arrays & HashingGreedy
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1Check if Target Triplet is Achievablemedium
Based onLeetCode

Desktop required

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