notebook/notes/algorithms/heaps.md

4.4 KiB

title TARGET DECK FILE TAGS tags
Heaps Obsidian::STEM algorithm::data_structure
algorithm
data_structure

Overview

The binary heap data structure is an array object that can be viewed as a trees#Positional Trees.

%%ANKI Cloze A binary heap is an {array} that can be viewed as a {binary tree}. Reference: Thomas H. Cormen et al., Introduction to Algorithms, Fourth edition (Cambridge, Massachusett: The MIT Press, 2022).

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%%ANKI Basic Is the following a valid binary heap? !perfect-tree.png Back: Yes. Reference: Thomas H. Cormen et al., Introduction to Algorithms, Fourth edition (Cambridge, Massachusett: The MIT Press, 2022).

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%%ANKI Basic Is the following a valid binary heap? !complete-tree.png Back: Yes. Reference: Thomas H. Cormen et al., Introduction to Algorithms, Fourth edition (Cambridge, Massachusett: The MIT Press, 2022).

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%%ANKI Basic Is the following a valid binary heap? !non-complete-tree.png Back: No. Reference: Thomas H. Cormen et al., Introduction to Algorithms, Fourth edition (Cambridge, Massachusett: The MIT Press, 2022).

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%%ANKI Basic Why can't the following be a binary heap? !non-complete-tree.png Back: A heap is equivalently viewed as a complete binary tree. Reference: Thomas H. Cormen et al., Introduction to Algorithms, Fourth edition (Cambridge, Massachusett: The MIT Press, 2022).

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%%ANKI Basic What two sizes are associated with binary heaps? Back: The number of valid elements and the size of the underlying array. Reference: Thomas H. Cormen et al., Introduction to Algorithms, Fourth edition (Cambridge, Massachusett: The MIT Press, 2022).

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%%ANKI Basic What are the two kinds of binary heaps? Back: Max-heaps and min-heaps. Reference: Thomas H. Cormen et al., Introduction to Algorithms, Fourth edition (Cambridge, Massachusett: The MIT Press, 2022).

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%%ANKI Basic What is the max-heap property? Back: Every parent node is greater than or equal to its children in value. Reference: Thomas H. Cormen et al., Introduction to Algorithms, Fourth edition (Cambridge, Massachusett: The MIT Press, 2022).

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%%ANKI Basic Where is the largest element of a max-heap? Back: At the root. Reference: Thomas H. Cormen et al., Introduction to Algorithms, Fourth edition (Cambridge, Massachusett: The MIT Press, 2022).

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%%ANKI Basic Where is the smallest element of a max-heap? Back: At the leaves. Reference: Thomas H. Cormen et al., Introduction to Algorithms, Fourth edition (Cambridge, Massachusett: The MIT Press, 2022).

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%%ANKI Basic What is the min-heap property? Back: Every parent node is less than or equal to its children in value. Reference: Thomas H. Cormen et al., Introduction to Algorithms, Fourth edition (Cambridge, Massachusett: The MIT Press, 2022).

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%%ANKI Basic Where is the smallest element of a min-heap? Back: At the root. Reference: Thomas H. Cormen et al., Introduction to Algorithms, Fourth edition (Cambridge, Massachusett: The MIT Press, 2022).

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%%ANKI Basic Where is the largest element of a min-heap? Back: At the leaves. Reference: Thomas H. Cormen et al., Introduction to Algorithms, Fourth edition (Cambridge, Massachusett: The MIT Press, 2022).

END%%

%%ANKI Basic How is the following binary heap viewed as an array? !max-heap-tree.png Back: !max-heap-array.png Reference: Thomas H. Cormen et al., Introduction to Algorithms, Fourth edition (Cambridge, Massachusett: The MIT Press, 2022).

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%%ANKI Basic How is the following binary heap instead viewed as a binary tree? !max-heap-array.png Back: !max-heap-tree.png Reference: Thomas H. Cormen et al., Introduction to Algorithms, Fourth edition (Cambridge, Massachusett: The MIT Press, 2022).

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%%ANKI Basic What kind of binary heap is the following? !max-heap-array.png Back: A max-heap. Reference: Thomas H. Cormen et al., Introduction to Algorithms, Fourth edition (Cambridge, Massachusett: The MIT Press, 2022).

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Bibliography

  • Thomas H. Cormen et al., Introduction to Algorithms, Fourth edition (Cambridge, Massachusett: The MIT Press, 2022).