LeetCode 23. Merge k Sorted Lists
Description https://leetcode.com/problems/merge-k-sorted-lists/ You are given an array of k linked-lists lists, each linked-list is sorted in ascending order. Merge all the linked-lists into…
Category: Sorting
LeetCode 322. Coin Change
Description https://leetcode.com/problems/coin-change/ You are given coins of different denominations and a total amount of money amount. Write a function to compute…
LeetCode 116. Populating Next Right Pointers in Each Node
Description https://leetcode.com/problems/search-a-2d-matrix-ii/ You are given a perfect binary tree where all leaves are on the same level, and every parent has two children.…
LeetCode 240. Search a 2D Matrix II
Description https://leetcode.com/problems/search-a-2d-matrix-ii/ Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties: Integers…
LeetCode 56. Merge Intervals
Description https://leetcode.com/problems/merge-intervals/ Given a collection of intervals, merge all overlapping intervals. Example 1: Input: [[1,3],[2,6],[8,10],[15,18]] Output: [[1,6],[8,10],[15,18]] Explanation: Since intervals…