ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms You are given an integer array nums of even length. You have to split the array into two parts nums and nums such that: nums .length nums .length nums.length . nums should contain distinct elements. nums should also...

ACMer    Chrome is deprecating the Manifest v From June . And this post will show you the steps to convert your extension with Manifest v to Manifest v . Google has given enough time to migrate to v . The v manifest was first introduced in Dec Chrome version M Beta , and Google has given...

ACMer    Windows Operating System by default has a control panel since early versions of Windows such as Windows .x, but it only shows most frequent options and it hides some options. Enable the God Mode of Control Pane It is quite simple to enable the God Mode which shows everything e.g. all the...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms There is an undirected tree with n nodes labeled from to n and n edges. You are given a D integer array edges of length n where edges indicates that there is an edge between nodes ai and bi in the tree. You are...

ACMer    This post shows you interesting fun BASH commands: BASH Console Tetris Game You can now play tetris game in Bash console. You would need to install this via: sudo apt install bastet or sudo yum install bastet start the Tetris Game bastet Control the movement of Tetris blocks by the...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms There is an undirected tree with n nodes labeled from to n and n edges. You are given a D integer array edges of length n where edges indicates that there is an edge between nodes ai and bi in the tree. You are...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms There is an undirected tree with n nodes labeled from to n and n edges. You are given a D integer array edges of length n where edges indicates that there is an edge between nodes ai and bi in the tree. You are...

ACMer    In the center of Cambridge, England, there is a Raspberry Pi store inside The Grand Arcade shopping center. This is one of only two offline Raspberry Pi stores in the UK official website , the other Raspberry Pi shop is in Leeds. The address of the Raspberry Pi store in Cambridge is: SU, The...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms There is an undirected tree with n nodes labeled from to n and n edges. You are given a D integer array edges of length n where edges indicates that there is an edge between nodes ai and bi in the tree. You are...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms Given an array of integers arr and an integer k. Find the least number of unique integers after removing exactly k elements. Example : Input: arr , k Output: Explanation: Remove the single, only is left. Example ...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms You are painting a fence of n posts with k different colors. You must paint the posts following these rules: Every post must be painted exactly one color. There cannot be three or more consecutive posts with the same color. Given...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms You are painting a fence of n posts with k different colors. You must paint the posts following these rules: Every post must be painted exactly one color. There cannot be three or more consecutive posts with the same color. Given...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms You are given an integer array nums with the following properties: nums.length n. nums contains n unique elements. Exactly one element of nums is repeated n times. Return the element that is repeated n times. Example ...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms You are given an integer array nums with the following properties: nums.length n. nums contains n unique elements. Exactly one element of nums is repeated n times. Return the element that is repeated n times. Example ...

ACMer    Sometimes we want to repeat a command on Linux, and we can use the following BASH function to repeat a command for a number of times: function repeat COUNT if ; then COUNT fi for i in seq COUNT ; do echo Counter i: CMD if ; then echo Error i return fi done return ...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms You are given an integer array nums with the following properties: nums.length n. nums contains n unique elements. Exactly one element of nums is repeated n times. Return the element that is repeated n times. Example ...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms You are given an integer array nums with the following properties: nums.length n. nums contains n unique elements. Exactly one element of nums is repeated n times. Return the element that is repeated n times. Example ...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms You are given an integer array nums with the following properties: nums.length n. nums contains n unique elements. Exactly one element of nums is repeated n times. Return the element that is repeated n times. Example ...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms There is an m x n grid with a ball. The ball is initially at the position . You are allowed to move the ball to one of the four adjacent cells in the grid possibly out of the grid crossing the grid boundary . You can apply at most...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms Given the head of a sorted linked list, delete all duplicates such that each element appears only once. Return the linked list sorted as well. Example : Input: head Output: Example : Input: head Output: Constraints: The...

ACMer    In Python, we can fail a test like this: def fail the test error msg : print error msg sys.stdout.flush sys.stdout.close this kills the process and make it return a non zero code os.kill os.getpid, signal.SIGKILL At this point, we can collect more information to help debugging. How to Get...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms Given the head of a sorted linked list, delete all duplicates such that each element appears only once. Return the linked list sorted as well. Example : Input: head Output: Example : Input: head Output: Constraints: The...

ACMer    A set in C aka std::set is a ordered set based on a Red Black tree while the unordered set is based on a Hash Map. Implement a K eth element for C Set in O K Implementing a function to find the k th element in a set in C can be done efficiently using iterators. A set in C is typically...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms You are given an array of positive integers nums. You have to check if it is possible to select two or more elements in the array such that the bitwise OR of the selected elements has at least one trailing zero in its binary...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms Given a string s, return the length of the longest substring between two equal characters, excluding the two characters. If there is no such substring return . A substring is a contiguous sequence of characters within a string....

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms Given a string s, return the length of the longest substring between two equal characters, excluding the two characters. If there is no such substring return . A substring is a contiguous sequence of characters within a string....

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms Given the following two equations: We can work on the X or Y in one equation and then substitue it in another equation. For example: from Equation, we know and we can plug in x into the second equation. Linear Algebra: Using...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms Given a binary tree where node values are digits from to . A path in the binary tree is said to be pseudo palindromic if at least one permutation of the node values in the path is a palindrome. Return the number of pseudo...

ACMer    I have domains, and they are all at CloudFlare. I would like to update the security level to all domains at once, programmatically. The security level could be one of these: Essentially off , low , medium , high and I’m under attack . Luckily, cloudflare provides API, and we can do this...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms Another Birthday Candles Problem Unlike the Original Birthday Candles Problem described here: Teaching Kids Programming The Birthday Candles Problem Three Algorithms , the number of candles blown for year N is the number of...

ACMer    I have domains so far, and only currently managed by CloudFlare Registra. Recently I decide to migrate all domains to CloudFlare registra because of cost. At CloudFlare, it seems the cheapest fee to renew a .COM domain . per year while in Namesilo the fee is around . so domains...

ACMer    The wordpress shortcode is a great feature that we can easily add via the add shortcode function. This post introduces two shortcode functions in WordPress to get the top posts by the comment count show top posts by comments or by the ratings show top posts by rating WordPress shortcode: Top...

ACMer    Checking the Balances of a BTC bitcoin wallet address can be done in two ways: Querying a Node, or Querying a Third party API. Querying a Node requires running your own node, or some other existing nodes. Setting up a node could be complex and there is running cost incurred. Accessing some existing...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms The Birthday Candles Problem If a person blows candle at Age, candles at Age, candles at Age, then what is the year of the birthday if he she has blown total candles. This can be solved using three algorithms...

ACMer    This blog traffic has declined a lot in the last days. The following shows the clicks from the Google Search in the Google Webmaster Dashboard. Take a look at the last months you will see the trend is declining very obviously. The peaks of the curve correspond to the mid week working days,...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms Given a binary tree where node values are digits from to . A path in the binary tree is said to be pseudo palindromic if at least one permutation of the node values in the path is a palindrome. Return the number of pseudo...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms Given a string s, return the number of unique palindromes of length three that are a subsequence of s. Note that even if there are multiple ways to obtain the same subsequence, it is still only counted once. A palindrome is a...

ACMer    Normalized Mean Absolute Error NMAE is a statistical measure used to assess the accuracy of a prediction model. It’s a variation of the Mean Absolute Error MAE , which is a common measure for regression models. Here’s how each term breaks down: Introduction to Mean Absolute Error MAE This is...

ACMer    A week ago, Google’s Gemini Demo was mind blowing but later it was reported that the demo video was edited, basically engineer prompted the AI offline and the use the text to voice engine to make the video look real time iterative. It looks to me it is cheating. Anyway, the Google stock price...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms There are n teams numbered from to n in a tournament; each team is also a node in a DAG. You are given the integer n and a indexed D integer array edges of length m representing the DAG, where edges indicates that there...

ACMer    Web or Web . Domains are those we mostly talk about nowadays. For example, when you type in https: helloacm.com in the browser, the helloacm.com is the Web . domain, which is controlled registered by a few centralized organizations. On the other hand, Web or Web . domains are based on...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms . Find Champion I There are n teams numbered from to n in a tournament. Given a indexed D boolean matrix grid of size n n. For all i, j that i, j n and i j team i is stronger than team j if grid ,...

ACMer    At System Power Battery, there is a Power Mode Setting which is default to Recommended . You can either choose Better Performance or Best Performance to Boost Your System immediately. In my case, switching to Best Performance immediately takes effects, and I notice that the CPU Fan...

ACMer    Solana is a high performance blockchain platform designed to provide fast, secure, and scalable decentralized applications and crypto currencies. It aims to address the scalability issues faced by other blockchain networks by utilizing a unique combination of technologies, including Proof of...

ACMer    Given a integer n, find all the sum of the number of the digits up to n, for example, given n, we return, because, , , , are all digits, given n , we return , because, , , , , , , , are one digit and is digits. Write a python code. Find the Number of Digits for a Given Integer...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms You are given a string s consisting of lowercase English letters, and you are allowed to perform operations on it. In one operation, you can replace a character in s with another lowercase English letter. Your task is to make s a...

ACMer    In blockchain technology, both hard forks and soft forks are methods of updating or upgrading the protocol of a blockchain. However, they differ significantly in how they achieve these changes and the impact they have on the network. Hard Fork A hard fork is a significant change to the blockchain’s...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms Two’s complement is a mathematical method used in computers to represent positive and negative integers. It’s the most common method for representing signed integers on computers. Two’s Complement Here’s how it works: Positive...

ACMer    Layer and Layer are terms used to describe different levels or layers within blockchain technology, each with its unique role and characteristics in maintaining and scaling a blockchain network. For example, on Steem Blockchain, the Layer is the steemd, the consensus software that is run by...

ACMer    Teaching Kids Programming: Videos on Data Structures and Algorithms We have a wooden plank of the length n units. Some ants are walking on the plank, each ant moves with a speed of unit per second. Some of the ants move to the left, the other move to the right. When two ants moving in two...