10 Questions
Which time complexity is required to solve a problem by sorting the list first and then finding the top k elements?
$O(n \log(n))$
Which time complexity is required to solve a problem using the top k elements pattern without sorting the list first?
$O(n \log(k))$
Which data structure is the best to keep track of the smallest or largest k elements?
Heap
Which type of heap should be used to find the smallest k elements?
Min-Heap
Which type of heap should be used to find the largest k elements?
Max-Heap
Which data structure provides O(1) access to the top k elements?
Min-Heap
What is the time complexity of finding the top k elements using a min-heap?
O(n log k)
When does the 'Top K Elements' pattern not apply?
When the input data structure supports random access
Which real-world problem can be solved using the 'Top K Elements' pattern?
Finding the nearest drivers for a user
What is the output string when sorting the characters 'buubble' by frequency using the 'Top K Elements' pattern?
'bbbuule'
Test your knowledge of the Top K Elements pattern and its applications in solving real-world problems. Learn about the strategy, examples, and time complexity associated with finding the top K elements from a given dataset.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
