leetcode-potd

You are given an integer array nums of size n. Consider a non-empty subarray from nums that has the maximum possible bitwise AND. In other words, let k be the maximum value […]

You are given an array arr of positive integers. You are also given the array queries where queries[i] = [lefti, righti]. For each query i compute the XOR of

You are given a string allowed consisting of distinct characters and an array of strings words. A string is consistent if all characters in the string appear

A bit flip of a number x is choosing a bit in the binary representation of x and flipping it from either 0 to 1 or 1 to 0. For example, for x = 7, the

Given the head of a linked list head, in which each node contains an integer value. Between every pair of adjacent

You are given two integers m and n, which represent the dimensions of a matrix. You are also given the head of a linked list

Given the head of a singly linked list and an integer k, split the linked list into k consecutive linked list parts. The length of

Given a binary tree root and a linked list with head as the first node.  Return True if all the elements in the linked list

You are given an array of integers nums and the head of a linked list. Return the head of the modified linked list after removing all nodes from

You have observations of n + m 6-sided dice rolls with each face numbered from 1 to 6. n of the observations went missing, and you only have

A robot on an infinite XY-plane starts at point (0, 0) facing north. The robot can receive a sequence of these three

You are given a string s consisting of lowercase English letters, and an integer k. First, convert s into an integer by replacing each letter with