Research

### [LeetCode 508] Most Frequent Subtree Sum

Given the root of a tree, you are asked to find the most ...
Research

### Stable Marriage Problem

The Stable Marriage Problem states that given N men and N women, where ...
Research

### Add a GitHub SSH Key on Windows

Adding an SSH key to GitHub is a great way to authenticate yourself ...
Research

### [LeetCode 101] Symmetric Tree

Given a binary tree, check whether it is a mirror of itself (ie, ...
Research

### [LeetCode 1462] Course Schedule IV

There are a total of n courses you have to take, labeled from 0 to n-1. Some courses ...
Research

### [LeetCode 1361] Validate Binary Tree Nodes

You have n binary tree nodes numbered from 0 to n - 1 where node i has two children leftChild[i] and rightChild[i], return true if and only ...
Research

### [LeetCode 1129] Shortest Path with Alternating Colors

Consider a directed graph, with nodes labelled 0, 1, ..., n-1.  In this graph, ...
Research

### [LeetCode 1203] Sort Items by Groups Respecting Dependencies

There are n items each belonging to zero or one of m groups where group[i] is the group that the i-th ...
Research

### [LeetCode 1162] As Far From Land as Possible

Given an n x n grid containing only values 0 and 1, where 0 represents water and 1 represents land, find a water cell ...
Research

### Ranked Medoids

A fast and accurate rank-based partitioning algorithmfor clustering large datasets Most of the ...