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Grokking the Coding Interview Patterns in C#

Solution: The Number of the Smallest Unoccupied Chair

Explore how to efficiently assign the smallest unoccupied chair to friends arriving and leaving at different times by using two min-heaps. Understand sorting arrival times, managing available and occupied chairs, and applying heap operations to optimize the solution in coding interviews.

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Statement

At a party, nn friends, numbered from 00 to n−1n - 1, arrive and leave at different times. There are infinitely many chairs, numbered 00 onwards. Each arriving friend sits on the smallest available chair at that moment.

For example, ...