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10 Questions

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Mastering the Two Heaps Pattern

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Questions and Answers

Which type of heaps can be used in the two heaps pattern?

Max-heaps

Neither min-heaps nor max-heaps

Both min-heaps and max-heaps (correct)

Min-heaps

What is the time complexity to insert an element in a heap with n elements?

$O(1)$

$O(n)$

$O(n^2)$

$O(\log n)$ (correct)

What does the root of a min-heap store?

The average element

The smallest element (correct)

The median element

The largest element

In which cases do we use two max-heaps to store two different data sets?

To find the largest numbers Signup and view all the answers

What type of heaps do we use to find the two smallest numbers from two different data sets?

Min-heaps Signup and view all the answers

Which of the following conditions must be fulfilled in order to need to repeatedly calculate two maxima, two minima, or one maximum and one minimum, based on a changing set of data?

The input data is not sorted Signup and view all the answers

Which of the following is an example of a real-world problem that uses the two heaps pattern?

Video streaming Signup and view all the answers

What is the purpose of implementing functionality to efficiently update the median age whenever a new user signs up for video streaming?

To track the median age of viewers Signup and view all the answers

When do we not need to track two extreme values (minima or maxima), but only one?

When we only need to calculate extreme values a fixed number of times Signup and view all the answers

What is the benefit of using heaps when the input data is not sorted?

Efficiently calculate extreme values Signup and view all the answers