Problem of The Day: Number of Laser Beams in a Bank
Problem Statement ``` Anti-theft security devices are activated inside a bank. You are given a 0-indexed binary string array bank representing the floor plan...
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Problem of The Day: Convert an Array Into a 2D Array With Conditions
Problem Statement ``` You are given an integer array nums. You need to create a 2D array from nums satisfying the following conditions:
Problem of The Day: Construct Binary Tree from Preorder and Inorder Traversal
Problem Statement ``` Given two integer arrays preorder and inorder where preorder is the preorder traversal of a binary tree and inorder is the inorder trav...
Problem of The Day: Assign Cookies
Problem Statement ``` Assume you are an awesome parent and want to give your children some cookies. But, you should give each child at most one cookie.
Problem of The Day: Validate Binary Search Tree
Problem Statement See link