Tag: hash map
Teaching Kids Programming: Videos on Data Structures and Algorithms You are given a 2D boolean matrix grid. Return an integer that is the number of right triangles that can …
Teaching Kids Programming: Videos on Data Structures and Algorithms Given a string s, find any substring of length 2 which is also present in the reverse of s. Return …
Teaching Kids Programming: Videos on Data Structures and Algorithms You are given an integer array nums of even length. You have to split the array into two parts nums1 …
Teaching Kids Programming: Videos on Data Structures and Algorithms Given an array of integers arr and an integer k. Find the least number of unique integers after removing exactly …
Teaching Kids Programming: Videos on Data Structures and Algorithms You are given an integer array nums with the following properties: nums.length == 2 * n. nums contains n + …
