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1Evaluate RPN Expressionmedium
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Based onLeetCode
mediumNeetCode 150
Evaluate Reverse Polish Notation
Evaluate Reverse Polish Notation rewards disciplined state tracking more than raw coding speed. Interviewers love it because it reveals your stack invariants and your edge-case discipline. The classic mistake is not being clear about what your stack represents at each step.
Arrays & HashingStackMath & Geometry
👩🏫
👨💼
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
1Evaluate RPN Expressionmedium
2Part 2
3Part 3
Start Part 1 to unlock your next challenge
Based onLeetCode
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