Given an array of scores that are non-negative integers. Player 1 picks one of the numbers from either end of the array followed by the player 2 and t ...

Given a (singly) linked list with head node root, write a function to split the linked list into k consecutive linked list “parts”. The length of each ...

Given the head of a linked list, return the list after sorting it in ascending order. Follow upCan you sort the linked list in O(n logn) time and O(1) ...

You are given an integer array nums and you have to return a new counts array. The counts array has the property where counts[i] is the number of smal ...

On an infinite number line (x-axis), we drop given squares in the order they are given. The i-th square dropped (positions[i] = (left, side_length)) i ...

A city’s skyline is the outer contour of the silhouette formed by all the buildings in that city when viewed from a distance. Now suppose you are give ...

A Range Module is a module that tracks ranges of numbers. Your task is to design and implement the following interfaces in an efficient manner. addRa ...

Design a special dictionary which has some words and allows you to search the words in it by a prefix and a suffix. Implement the WordFilter class: W ...

Given the root of a binary tree, the depth of each node is the shortest distance to the root. Return the smallest subtree such that it contains all th ...

Given an array of unique integers, each integer is strictly greater than 1. We make a binary tree using these integers and each number may be used for ...