Posts

Showing posts from July, 2020

Git Commands Cheet Sheet

-
This guide includes an introduction to Git, a glossary of terms and lists of commonly used Git commands. What is Git? 🤔 Git gives each developer their own repository containing the entire history of changes. More formally Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals. Before you get started with Git, you need to understand some important terms:😀 Commit:-  It   represents a specific point in your project's history. Checkout:-  Checkout command to switch between branches. Fetch:-  Fetch command copies and downloads all of a branch's files to your device.   Fork:-  A fork is a copy of a repository. Take a copy of the project for doing some changes without affecting your main project. Head:-  It represents the most current commit of the repository you're currently working in. The commit at the top of a branch is called th...
Post a Comment
Read more

New position

-
Level  EASY You are given two integers n and k. Assume numbers from 1 to n are arranged in a way that - all odd numbers (in ascending order) comes first and then comes to all even numbers (also in ascending order). You need to find and return the integer which is at position k (numbering of positions start from 1). Input Format : Line 1 : Integer n Line 2 : Integer k Output Format : Integer at position k Constraints : 1 <= k <= n <= 10^12 Sample Input: 7 4 Sample Output: 7 Sample Output Explanation : Numbers from 1 to 7 are arranged as - (1, 3, 5, 7, 2, 4, 6) and number at position 4 is 7. So, the output is 7.
Post a Comment
Read more

Check Even Partitioning

-
Level  EASY Given a number n, check whether the number can be the sum of two even numbers or not. Return true if it can be, return false otherwise. Constraints : ** 1 <= n <= 100000** Input Format : Integer n Output Format : YES or NO Sample Input 1 : 8 Sample Output 1 : YES Sample Input 2 : 9 Sample Output2 : NO
Post a Comment
Read more

Factorial

-
Level  EASY Given an integer n, find and print the factorial of the given integer. Constraints : 0 <= n <1000 Input Format : Integer n Output Format : Print answer Sample Input 1: 6 Sample Output 1: 720 Sample Input 2: 4 Sample Output 2: 24
Post a Comment
Read more

LCM^k

-
Given three integers   N,M,K  and array of integers   a 1 ,a 2 ,...,a n . Find the value of   LCM (a 1 k ,a 2 k ,...,a n k )   mod   M , where   LCM   means   Least Common Multiple . Input The first line of the input contains a single integer   T   denoting the number of test cases(1 ≤  T   ≤ 10).  The description of   T   test cases follows. First line contains three positive integers   N, M, K (1 ≤   N  ≤ 3 * 10 5 , 1 ≤   M ,   K  ≤ 10 9 ). The second line contains   N   space-separated integers   a 1 ,a 2 ,...,a n .(1 ≤ a i   ≤ 10 6 ,1 ≤   i   ≤   N ). Output For each test case print the value of   LCM (a 1 k ,a 2 k ,...,a n k )   mod   M . SAMPLE INPUT   1 5 20 3 17 2 9 4 12 SAMPLE OUTPUT   8 Explanation In the test LCM(17 3 ,2 3 ,9 3 ,4 3 ,12 3 ) = 229220928, 229220928 mod 20 = 8. Note...
Post a Comment
Read more

Cutting a material

-
You are given a disk-shaped or circular material. Determine the maximum number of pieces in which the material can be cut into by using exactly  N  straight cuts. You must perform the task for   T   tasks separately. Input format The first line contains   T   denoting the number of test cases. Next   T   lines contain a single integer   N . Output format Print   T   separate lines each containing answer for each test case. Note :   Use a 64-bit variable to store and read all the variables. Constraints 1 ≤ T ≤ 10 5 0 ≤ N ≤ 10 8 SAMPLE INPUT   2 0 4 SAMPLE OUTPUT   1 11 Explanation For the first case where N = 0, using 0 cuts you can get a maximum of 1 piece of the material. For the second case where N = 4, using exactly 4 straight cuts you can get 11 pieces of material.
Post a Comment
Read more

Love Triangle

-
Two boys,   Venky   and   Sagar , are at war over a girl,   Riu . Driven by their feelings, they decided to confess to   Riu . Since both of them were equally dumb,   Riu   decided that she would go out with that boy who would successfully find the pattern and thus prove that he is less dumb. Read input until end of file. Given :   0<=N<=10^18 SAMPLE INPUT   1 2 3 10 100 SAMPLE OUTPUT   1 2 3 11 121
Post a Comment
Read more

C. Make It Good

-
C. Make It Good time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You are given an array   𝑎 a   consisting of   𝑛   integers. You have to find the length of the smallest (shortest)   prefix   of elements you need to erase from   𝑎 a   to make it a   good   array. Recall that the prefix of the array   𝑎 = [ 𝑎 1 , 𝑎 2 , … , 𝑎 𝑛 ]   is a subarray consisting several first elements: the prefix of the array   𝑎 a   of length   𝑘 k   is the array   [ 𝑎 1 , 𝑎 2 , … , 𝑎 𝑘 ] ( 0 ≤ 𝑘 ≤ 𝑛 0 ≤ k ≤ n ). The array   𝑏 b   of length   𝑚 m   is called   good , if you can obtain a   non-decreasing   array   𝑐 ( 𝑐 1 ≤ 𝑐 2 ≤ ⋯ ≤ 𝑐 𝑚 ) from it, repeating the following operation   𝑚   times (initially,   𝑐   is empty): select either the first or the last element of   𝑏 , remov...
Post a Comment
Read more

Popular posts from this blog

MySQL Multi Source Master Slave Replication using GTID

-
Image
We are using GTID-based master-slave replication. In this replication, both master and slave should have the same GTID. This blog post aims to provide a step-by-step guide to help you set up MySQL Replication using GTIDs and help you replicate your MySQL data with ease. Prerequisite Master Source 1 Channel name:  DEVELOPMENT Database: mydb1 Enable Replication For Tables testing1 testing2 testing3 Mysql Server Running: 192.168.0.201:3307 Master Source 2 Channel name:  PRODUCTION Database: mydb1 Enable Replication For Tables testing4 testing5 testing6 Mysql Server Running: 192.168.0.201:3308 Slave Mysql Server Running: 192.168.0.209:3306 Configuration of  masters(192.168.0.201:3307/192.168.0.201:3308) and slave (192.168.0.209:3306) my.cnf config for master (192.168.0.201:3307) my.cnf config for master (192.168.0.201:3308) my.cnf config for slave (192.168.0.209:3306) Steps for taking a dump and restoring it Run the following commands in both masters 192.168.0.201:3307 and 1...
Read more

Access and modify all the resources of our Wiki.js using WikiJS API

-
Image
Hi everyone 😎 , Today we are going to see how to access or modify WikiJS resources using WikiJS API. WikiJS exposes GraphQL API to access and modify the stuff according to our requirements. So In this blog post, we going to see  How to set up WikiJS's local environment using docker. How to generate an API token in Wikijs. Using API tokens how to access WikiJS resources and how to modify them. First Local Setup using docker Here I am using docker to set up my local isolated WikiJS environment. Below is my docker-compose.yml file written by WikiJS contributors. To build the WikiJS environment we just need to run the following command  docker-compose up -df  [PATH_OF_DOCKER_COMPOSE_YML_FILE] To check the environment is in a running state run the following command docker ps Second Generate API token After setup our local environment we are ready to create our initial Administrator account in our WikiJS. 1. On the browser type localhost:80 2. Create an Administrator acco...
Read more

How to pass parameters in webhook?

-
Image
Hey everyone 😊, Today I want to share another interesting thing which I found in StackOverflow and that is how to pass parameters in webhook. Those who don't know about webhook I advise you to google about it before going further reading.  So for demonstration purpose, I am going to use Jenkins and Generic Webhook plugin . I created a job and called it testing  and select Generic Webhook  Trigger . Thereafter I add Request Parameter   and in the request parameter I added the name of the request which is name Thereafter I added a token to specify that this job can only be triggered. After this, I select Execute Shell from Build  and write the following code  After doing this add webhook URL in bitbucket repository or  GitHub repository with the parameter. The URL is look something like this  Webhook URL:- https://[YOUR_JENKINS_URL]/generic-webhook-trigger/invoke?token=trigger&name=Svastikkka  The configuration will something like this ...
Read more