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12 Best Websites to Practice Coding for Beginners

By Md Shoriful Islam
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COURSES LOCATIONS CAREER SERVICES ABOUT US ENTERPRISE RESOURCES APPLY NOW 12 Best Websites to Practice Coding for Beginners Posted by Flatiron School  /  August 16, 2021 Facebook Twitter Email Share Learning to code has become one of the most essential skills for people entering the tech industry — but where do you start if you don’t already know how? There are plenty of places to practice coding for beginners, so find out the best and jump right in. READING TIME 6 MINS Indeed’s “ Best Jobs of 2020 ” ranked America’s most highly prized careers based on demand, pay, and potential for growth. Some of these included: software architect (1), full-stack developer (2), Java developer (6), data scientist (7), and IT security specialist (9). That means that of the top ten best jobs in America, half of them required coding skills. ‌ But, if you don’t have coding skills, where do you go to learn them? Some may turn to their local library, and others may have the time and money to go back to scho
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ICPC Dhaka Regional Preliminary Contest #Editorials 2022 Hosted By Green University of Bangladesh

By Md Shoriful Islam
  ICPC Dhaka Regional Preliminary Contest 2022 Hosted By Green University of Bangladesh Problem A: A Game with Grandma Setter: Shafaet Ashraf Tester & Alter writers: Nafis Sadique Aleksa Plavsic Arghya Pal Problem type: Game Theory, DP Solution idea: If you're familiar with Grundy Numbers, you can use the divide and conquer technique to solve it. To do this, loop through the columns of the grid and place a box in all possible positions. Whenever a box is placed, it divides the whole grid into two parts. Solve each sub-problem recursively by calculating the Grundy number. The base case is when the grid size is less than 1. This solution has a time complexity of O(N^3) and will pass the time limit. Problem B: Transform the Array Setter: Raihat Zaman Neloy Tester & Alter writers: Md. Mahbubul Hasan H. M. Ashiqul Islam Muhiminul Islam Osim Problem type: Number theory, finding prime divisors Solution idea: For the first type of transformation - Let's find two sets of primes
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403. Scientific Problem - C++ / C - Solution - Codeforces ACMSGURU problemset

By Md Shoriful Islam
403. Scientific Problem Time limit per test: 0.25 second(s) Memory limit: 65536 kilobytes input: standard output: standard Once upon a time Professor Idioticideasinventor was travelling by train. Watching cheerless landscape outside the window, he decided to invent the theme of his new scientific work. All of a sudden a brilliant idea struck him: to develop an effective algorithm finding an integer number, which is x times less than the sum of all its integer positive predecessors, where number x is given. As far as he has no computer in the train, you have to solve this difficult problem. Input The first line of the input file contains an integer number x (1 ≤ x ≤ 109). OutputOutput an integer number — the answer to the problem. Example(s) sample input sample output 1 3 sample output 2 5 Solution Code: C++ #include <iostream> using namespace std ; // solved int main () { int x ; cin >> x ; cout << 2 * x + 1 << endl ; return 0 ; } Solu
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Version Control with Git: A Beginner’s Guide

By Md Shoriful Islam
Version Control with Git: A Beginner’s Guide If you are a developer, you probably know how important it is to keep track of your code changes and collaborate with other developers on a project. But how do you do that effectively and efficiently? The answer is version control. Version control is a system that records changes to a file or set of files over time so that you can recall specific versions later. It allows you to revert files back to a previous state, compare changes over time, see who last modified something, and more. Version control also enables you to work with other developers on the same code base without stepping on each other’s toes. One of the most popular version control systems in the world is Git. Git is a free and open source distributed version control system that is designed to handle everything from small to very large projects with speed and efficiency. Git has many features that make it superior to other version control systems, such as: Cheap local branchin
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Callback function in JavaScript

By Md Shoriful Islam
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Callback function in JavaScript What is a callback function in JavaScript? A callback function is a function that is passed as an argument to another function and is executed after the first function has completed its task. Callback functions are useful for handling asynchronous events, such as network requests, file operations, or timers. For example, you can use a callback function to display the result of a calculation after the calculation is done. Callback function in JavaScript Here is a simple example of a callback function in JavaScript: // Define a function that takes a callback as an argument function sayHello (callback) { // Do some task console .log ("Hello, world!"); // Invoke the callback function callback (); } // Define another function function sayGoodbye () { // Do some task console .log ("Goodbye, world!"); } // Call the first function and pass the second function as a callback sayHello (sayGoodbye); // The output will be: // Hello, wo
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