Reverse Linked List | Leetcode 206
Given the head of a singly linked list, reverse the list, and return the reversed list. Example 1: Input: head = [1,2,3,4,5] Output: [5,4,3,2,1] Example 2: Input: head = [1,2] Output: [2,1] Example…
Check if Linked List has a Cycle | Linked List Cycle | Leetcode 141
Given head, the head of a linked list, determine if the linked list has a cycle in it. There is a cycle in a linked list if there is some node…
Remove nth node from end of list | Python | Leetcode 19
Given the head of a linked list, remove the nth node from the end of the list and return its head. Example 1: Input: head = [1,2,3,4,5], n = 2 Output: [1,2,3,5] Example 2:…
Check If A Number Is Power Of Two | Python | Leetcode 231
Question Given an integer n, return true if it is a power of two. Otherwise, return false. An integer n is a power of two, if there exists an integer x such that n == 2x. Example 1: Input:…
Number of Days Between Two Dates | Python | Leetcode 1360
Question Write a program to count the number of days between two dates. The two dates are given as strings, their format is YYYY-MM-DD as shown in the examples. Example 1: Input:…