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Basic Calculator (LC 224)

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A phone-screen coding question about evaluating an arithmetic expression string with nesting. The interesting part is handling grouping cleanly on very long inputs. Interviewers like to push on correctness details and how you reason about input size.

SWE
medium
string
parsing
stack
Frequency
Single report
Last asked
—
Stage
phone-screen

Members get

  • Full problem statement
  • 3 progressive hints
  • Step-by-step approach
  • Full solution with code
  • 6 talking points
  • 5 follow-up questions with answer directions
  • Preparation drills

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