Tag: depth first search algorithm
Teaching Kids Programming: Videos on Data Structures and Algorithms Given a binary tree root, repeatedly delete all leaves that have even values. That is, if after deletions, a node …
Teaching Kids Programming: Videos on Data Structures and Algorithms In Python, we have itertools.product that calculates the Cartesian Product of a few list or tuple. For example: from itertools …
Teaching Kids Programming: Videos on Data Structures and Algorithms Given the root of a binary tree, return the average value of the nodes on each level in the form …
Teaching Kids Programming: Videos on Data Structures and Algorithms Given a binary tree root, return the same tree except every node’s value is replaced by its original value plus …
Teaching Kids Programming: Videos on Data Structures and Algorithms Given the root node of a binary search tree, return the sum of values of all nodes with a value …