leetcode-potd

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

There are n students in a class numbered from 0 to n – 1. The teacher will give each student a problem starting with the

You are given a 0-indexed 1-dimensional (1D) integer array original, and two integers, m and n. You are tasked with creating a 2-dimensional (2D) array with 

Given a string s and a dictionary of strings wordDict, add spaces in s to construct a sentence where each word is a valid dictionary