Search⌘ K
AI Features
Home
Courses
Grokking the Coding Interview Patterns

Solution: Employee Free Time

Explore how to solve the Employee Free Time problem by merging overlapping intervals from multiple employee schedules. Understand how to use a min-heap to efficiently identify gaps representing common free time. This lesson helps you master interval merging techniques relevant in scheduling and overlapping intervals challenges.

We'll cover the following...

Statement

You’re given a list containing the schedules of multiple employees. Each person’s schedule is a list of non-overlapping intervals in a sorted order. An interval is specified with the start and end time, both being positive integers. Your task is to find the list of finite intervals representing the free time for all the employees.

Note: The common free intervals are calculated between the earliest start time and the latest end time of all meetings across all employees.

Constraints:

  • 1≤1 \leq schedule.length , schedule[i].length ≤50\leq 50

  • 0≤0 \leq interval.start < interval.end ≤108\leq 10^8 ...