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112. a^b-b^a - Codeforces || You are given natural numbers a and b. Find a^b-b^a. Codeforces

By Md Shoriful Islam
  112. a^b-b^a https://codeforces.com/problemsets/acmsguru/problem/99999/112 time limit per test: 0.25 sec. memory limit per test: 4096 KB You are given natural numbers a and b. Find a^b-b^a.  Input Input contains numbers a and b (1≤a,b≤100). Output Write answer to output. Sample Input 2 3 Sample Output -1 Solution Code: C++ #include <iostream> #include <cmath> // solved the problem but not accepted with this code... // i got accepted with the python code. int main () { int a, b; std::cin >> a >> b; long long pa = pow (a, b); long long pb = pow (b, a); std::cout << pa - pb << std::endl; return 0 ; } Solution Code: Python 3 # Accepted a,b = map ( int , input ().split()) pa = pow (a,b) pb = pow (b,a) print (pa - pb)
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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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At last, Got the CS2 update #counterstrike #CS2 #CSGO

By Md Shoriful Islam
At last, Got the CS2 update... Happy ending of Counter Strike Global Offensive. New Era of CS2 #counterstrike #CS2 @CounterStrike #CSGO
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Solving A. How Much Does Daytona Cost? in C++

By Md Shoriful Islam
A. How Much Does Daytona Cost? Problem - A - Codeforces - Codeforces Round 900 (Div. 3) Solving the Most Common Element Subsegment Problem in C++ Introduction: In the world of programming, problem-solving is a fundamental skill. It involves taking a complex task and breaking it down into smaller, manageable steps. In this blog post, we will dissect and solve a code problem that involves finding if a specific element exists in an array. The problem statement is as follows: Problem Statement: You are given an array of integers and an integer K. The task is to determine whether K exists in the given array. You will be provided with multiple test cases, each containing an array and a value of K. For each test case, you need to output "YES" if K is found in the array and "NO" otherwise. Solution: Let's break down the problem into steps and implement a solution in C++.Read the number of test cases (t) from input. Enter a loop that runs t times, one iteration for eac
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Codeforces round #900 (Div.3) Editorial

By Md Shoriful Islam
  Codeforces round #900 (Div.3) Editorial Thank you for participating in the first ever Serbian Div. 3 Codeforces round! Sorry Before the editorial, we are sorry for the big gap between problems C and D. This was the first round we ever created (except for  wxhtzdy ). We are striving to become better problem-setters and create more balanced problems-sets in the future. Also a massive thanks to  Vladosiya  for giving us a chance to create a divison 3 round! 1878A - How Much Does Daytona Cost? Problem was authored and prepared by Author:  wxhtzdy Prepared by:  ognjentesic ,  AndrewPav ,  AlphaMale06 Hints Hint 1 When is the answer definitely "NO"? Hint 2 What happens if there is no element equal to  k �  in the array? Hint 3 What happens if there is an element equal to  k �  in the array? Tutorial 1878A - How Much Does Daytona Cost? It's enough to check if there even exists the element equals to  K � , since  K �  is obviously the most common element in the subsegment of le
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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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