꿈꾸는공학도

https://leetcode.com/problems/linked-list-cycle-ii/description/Given the head of a linked list, return the node where the cycle begins. If there is no cycle, return null.There is a cycle in a linked list if there is some node in the list that can be reached again by continuously following the next pointer. Internally, pos is used to denote the index of the node that tail's next pointer is connec..

https://leetcode.com/problems/range-sum-of-sorted-subarray-sums/description/?envType=daily-question&envId=2024-08-04You are given the array nums consisting of n positive integers. You computed the sum of all non-empty continuous subarrays from the array and then sorted them in non-decreasing order, creating a new array of n * (n + 1) / 2 numbers.Return the sum of the numbers from index left to i..

https://leetcode.com/problems/remove-element/description/Given an integer array nums and an integer val, remove all occurrences of val in nums in-place. The order of the elements may be changed. Then return the number of elements in nums which are not equal to val.Consider the number of elements in nums which are not equal to val be k, to get accepted, you need to do the following things:Change ..

https://leetcode.com/problems/add-two-numbers/description/You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order, and each of their nodes contains a single digit. Add the two numbers and return the sum as a linked list.You may assume the two numbers do not contain any leading zero, except the number 0 itself. Example 1:Input: l1 = ..