letsbug Solutions

HackerRank minimumBribes Solution solution is in Javascript "use strict" ; function minimumBribes ( q ) {     let result = 0 ;     for ( let i = 0 ; i < q .length; i ++ ) {         if ( q [ i ] - ( i + 1 ) > 2 )             console . log ( "Too chaotic" );         for ( let j = Math . max ( 0 , q [ i ] - 2 ); j < i ; j ++ ) {             if ( q [ j ] > q [ i ])                 result ++ ;         }     }     console . log ( result ); } console . log ( minimumBribes ([ 1 , 5 , 2 , 3 , 4 ]));

    In this article we are going to rotate an array to left . So basically we are going to shift the elements of the array to the left of the array after some index . And we are going to use javascript for this we you can do this is any language. We some different logic and implementations.     Let me explain you what we are going to do here. Suppose we are given an array with these elements       arr = [ 1 , 2 , 3 , 4 , 5 ]     And we have been given to rotate this array by 2 elements that means that you have to shift all the that are after the index 2 to the left of the array. So you arr will look like this      arr = [ 3 , 4 , 5 , 1 , 2 ]     So let's start coding this in javascript      Array Left Rotation code:     "use strict" ;     function rotLeft (a, d) {         let temp = [];         for ( let i = 0 ; i < a .lengt...

    In this article we are going make a function which will return the median of the an array which will be passed to the function as parameter. And we are using typescript for this. If you don't know what typescript is please learn about it a little bit. But if you don't know let me tell you in short what typescript is? As you all know that we cannot not define types of variable in javascript. To solve this problem and many more we have typescript. It is a superset of javascript which means any javascript file is typescript file be every typescript file in not javascript.     To run typescript file we have to install the typescript from npm. And then we can use it.     Coming back to the topic we have already made article where we find the median but it was for sorted array. So, let's start.     Median in an unsorted Array     Finding median of an unsorted array is same like sorted array but before we find the median here we first ha...

    One of the most  important thing that we have learnt over the years while learning in data structures and algorithms is that as important is to understand it and to use it. One should also know how to visualize these data structures and algorithms.      And we've got you covered in this article we are visualizing the bubble sort algorithm in javascript . And for this we are taking a help of a Javascript library called P5.js you can learn more about it by clicking here.       Let me give you a brief description about P5.js to you. Its is a library that helps you in your canvas, animation and simulation projects. In this project we have used downloaded the library but there is a cdn link that you can use in your project. And if you want to learn about the bubble sort algorithm click here.       So let's start out project  Bubble Sort Algorithm Visualizer Create a project folder. Create index.js, index.html files in it...

    When you are trying to learn Data structures and algorithms you come across this data type which is a array or list whatever you call it. It is one of the most basic data type and is fairly easy even for a newbie who is just getting started.     And one being easy means that it has ability to do very complex tasks. A array is just that. It is simple and does many complex things. But before going on complex algorithms and data structures lets see a simple problems first.     This is simple problem is  Finding Median in a Array     So let's start by first understanding what is median. The median is the middle number in a sorted, ascending or descending, list of numbers and can be more descriptive of that data set  than the average.     We are doing this in javascript by making a function which returns the median if we pass the array to the function. Hence below we have created  a  function which takes array as a par...