Maximum Sum Rectangle with Condition
Given a two-dimensional integer matrix matrix and an integer k, return the largest sum of a rectangle ≤ k.
Posts with tag 'queue'
Bipartite Graph
Given an undirected graph represented as an adjacency list, return whether the graph is bipartite.
Top View of a Tree
Given a binary tree root, return the top view of the tree, sorted left-to-right.
Level Order Traversal
Given a binary tree root return a level order traversal of the node values.
Level Order Binary Tree to Linked List
Given a binary tree root, convert it to a singly linked list using level order traversal.
Level Order Alternating
Given a binary tree root, return values of the nodes in each level, alternating from going left-to-right and right-to-left.
Leaves in Same Level
Given a binary tree root, return whether all leaves are at the same level.