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
You are given two strings `s` and `t`. String `t` is generated by random shuffling string `s` and then add one more letter at a random position. Return the letter that was added to `t`.
Example
s = "abcd", t = "abcde" → "e"
Constraints
0 ≤ s.length ≤ 1000 · t.length == s.length + 1 · s and t consist of lowercase English letters
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WPM—Fillers0Pace—Thinking0%
Explain the problem in your own words
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