LeetCode 138. Copy List with Random Pointer
Description A linked list is given such that each node contains an additional random pointer which could point to any…
Author: GoodTecher
LeetCode 63. Unique Paths II
Description https://leetcode.com/problems/unique-paths-ii/ A robot is located at the top-left corner of a m x n grid (marked ‘Start’ in the diagram below).…
LeetCode 62. Unique Paths
Description A robot is located at the top-left corner of a m x n grid (marked ‘Start’ in the diagram below). The robot can…
LeetCode 5. Longest Palindromic Substring
Description https://leetcode.com/problems/longest-palindromic-substring/description/ Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000.…
LeetCode 11. Container With Most Water
Description https://leetcode.com/problems/container-with-most-water/ Given n non-negative integers a1, a2, …, an , where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two…
LeetCode 42. Trapping Rain Water
Description https://leetcode.com/problems/trapping-rain-water/description/ Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water…
LeetCode 90. Subsets II
Description Given a collection of integers that might contain duplicates, nums, return all possible subsets (the power set). Note: The…
LeetCode 78. Subsets
Description https://leetcode.com/problems/subsets/ Given an integer array nums of unique elements, return all possible subsets (the power set). The solution set must not contain duplicate subsets. Return the…
LeetCode 21. Merge Two Sorted Lists
Description Merge two sorted linked lists and return it as a sorted list. The list should be made by splicing together the…
LeetCode 6. ZigZag Conversion
Description https://leetcode.com/problems/zigzag-conversion/description/ The string “PAYPALISHIRING” is written in a zigzag pattern on a given number of rows like this: (you may want…