Deep Clone N-ary Tree using Hash Map + Recursive Depth First Search Algorithm
Given a root of an N-ary tree, return a deep copy (clone) of the tree. Each node in the n-ary tree contains a val (int) and a list (List) …
Author: ACMer
SQLite Explan: Why the Most Popular Accounts Query is Slow compared to Most Blocked Accounts Query?
Similarly to Most Blocks Accounts on Steem Blockchain I was going to have a page that lists the most popular accounts (most followed). However, after analysis, I decide to …
Steem Reputation Format Function in PHP
On Steem Blockchain, the reputation can be formatted in a logarithmetic (base 10) scale. Given recently, my PR to fix the reputation formatter in SteemJS is merged, I also …
Dynamic Programming Algorithm to Compute the Max Dot Product of Two Subsequences
Given two arrays nums1 and nums2. Return the maximum dot product between non-empty subsequences of nums1 and nums2 with the same length. A subsequence of a array is a …
How to Delete N Nodes After M Nodes of a Linked List?
Given the head of a linked list and two integers m and n. Traverse the linked list and remove some nodes in the following way: Start with the head …