Section 1Understand Problem
Section 01
Understand the problem
Restate the problem precisely. Interviewers reward candidates who pause, define the contract, and name the guarantees before coding.
Problem statement
Write a function that reverses a string. The input string is given as `s`. (Canonical LeetCode form takes char[] and modifies in place; here you may return a string for clean unit-testing.)
Example
s = "hello" → "olleh"
Constraints
0 ≤ s.length ≤ 10⁵ · s consists of printable ASCII characters
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WPM—Fillers0Pace—Thinking0%
Explain the problem in your own words
0 words0 chars
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