Merge Intervals, Then Course Schedule

The interviewer was looking over my resume while I gave my self-introduction, and after I finished he asked about a project from my background — a project building a model, and he asked about offline evaluation for the model. Coding: given a set of time-window intervals, merge all overlapping intervals. Input: [[1,3],[2,6],[8,10]], output: [[1,6],[8,10]]. My approach: first sort by each interval'…

Shared by a candidate · reported Jan 2026. Interview formats change; use it as a guide, not a script.