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Technical2026-08-17

Find the Missing Number

AI-Expanded — inferred from the question title, not from the original candidate report

Given an array containing $n$ distinct numbers taken from the range $0$ to $n$, identify the single number from the range that is missing from the array. Your solution should ideally run in linear time complexity and use constant extra space.

Context & Summary

25-minute DSA round. Introduction (5 mins), followed by basic questions about projects mentioned in the resume. One coding question and one SQL query were asked.

💻 Coding practice works best on desktop.
Code editors are too cramped on mobile screens.