Sweep Line Interview Questions

Master 8 sweep line problems frequently asked in technical interviews. These questions test your understanding of sweep lineconcepts and are essential for coding interview success.

Total Problems

Easy

Medium

Hard

Interval List Intersections

Asked at Meta

Array Two Pointers Sweep Line

Rank

#761HardFrequency: 67.9%

Employee Free Time

Asked at Airbnb

Array Sweep Line Sorting Heap (Priority Queue)

Rank

#880HardFrequency: 59.8%

Rectangle Area II

Asked at Flipkart

Array Segment Tree Sweep Line Ordered Set

Rank

#218HardFrequency: 37.9%

The Skyline Problem

Asked at Uber

Array Divide and Conquer Binary Indexed Tree Segment Tree Sweep Line Sorting Heap (Priority Queue)Ordered Set

Rank

#1977HardFrequency: 30.4%

Minimum Interval to Include Each Query

Asked at Google

Array Binary Search Sweep Line Sorting Heap (Priority Queue)

Rank

#3315HardFrequency: 27.3%

Maximum Number of Intersections on the Chart

Asked at Microsoft

Array Hash Table Math Binary Indexed Tree Geometry Sweep Line Sorting

Rank

#391HardFrequency: 20.9%

Perfect Rectangle

Asked at Google

Array Hash Table Math Geometry Sweep Line

Rank

#3775HardFrequency: 20.9%

Separate Squares II

Asked at Google

Array Binary Search Segment Tree Sweep Line

Rank

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Sweep Line Interview Questions

Master 8 sweep line problems frequently asked in technical interviews. These questions test your understanding of sweep lineconcepts and are essential for coding interview success.

Total Problems

Easy

Medium

Hard