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Observer pattern allows an object (subject) to notify its dependents (observers) of changes in its state. Code: [dm_code_snippet background="yes" background-mobile="no" slim="no" line-numbers="no" bg-color="#abb8c3"...

Factory pattern defines an interface for creating objects and allows subclasses to alter the object type created. Code: [dm_code_snippet background="yes" background-mobile="no" slim="no" line-numbers="no"...

Define a new exception class deriving from Exception. Code: [dm_code_snippet background="yes" background-mobile="no" slim="no" line-numbers="no" bg-color="#abb8c3" theme="dark" language="php" wrapped="no"...

Pandas provides data structures and data analysis tools, including reading data from CSV. Code: [dm_code_snippet background="yes" background-mobile="no" slim="no" line-numbers="no" bg-color="#abb8c3"...

Use nested loops to perform matrix multiplication. Code: [dm_code_snippet background="yes" background-mobile="no" slim="no" line-numbers="no" bg-color="#abb8c3" theme="dark" language="php" wrapped="no"...

Use the hashlib library: [dm_code_snippet background="yes" background-mobile="no" slim="no" line-numbers="no" bg-color="#abb8c3" theme="dark" language="php" wrapped="no" height="" copy-text="Copy Code"...

A doubly linked list allows traversal in both directions. Here’s an implementation: [dm_code_snippet background="yes" background-mobile="no" slim="no" line-numbers="no" bg-color="#abb8c3" theme="dark"...

You can use the itertools module to generate subsets: [dm_code_snippet background="yes" background-mobile="no" slim="no" line-numbers="no" bg-color="#abb8c3" theme="dark" language="php" wrapped="no"...

A binary search tree (BST) is a tree data structure where each node has up to two children, and the value of each node is greater than or equal to the values in its left subtree and less than or equal...

An adjacency list is a list of lists where each sublist represents the neighbors of a vertex. Here’s an example: [dm_code_snippet background="yes" background-mobile="no" slim="no" line-numbers="no"...