Channels in Golang are useful for transferring data and coordinating the execution of goroutines. We will go over what channels are, how they operate, and how to use them successfully in Golang in this article. What are Channels? In Golang, channels are a means of data synchronisation and communication between goroutines. A channel primarily functions as a message queue that enables communication between goroutines. Without the requirement for explicit locking or synchronisation, channels offer a secure and effective method of data sharing between goroutines. How Channels Work Channels in Golang are implemented using the chan keyword. Channels can be created ... Read More

An array is a collection of similar data sets which stored at adjacent memory locations in a continuous manner. It makes the process easier to evaluate the particular position of each and every element by defining an offset value to the particular base value of a database. The base value of that particular index is zero and an offset is a value of the difference of two particular indexes. A subarray is a section of a particular array which can be defined as a set of variables collectively with a label of multiple values. The longest subarray means in which ... Read More

The cookies are the data stored in the user’s browser for quick access. For example, whenever we log in to any website, the server returns the access token, which can be stored in the browser’s cookie with the expiry time. So, whenever a user revisits the website, they don’t need to log in to the website repeatedly if the access token stored in the cookies has not expired. We can also access the browser’s cookies on the server side in NodeJS. After that, we can check if any detailed data exists in the cookies we are looking at, and if ... Read More

Inversion count is a step counting method by which we can calculate the number of sorting steps taken by a particular array. It is also capable to count the operation time span for an array. But, if we want to sort an array in a reverse manner, the count will be maximum number present in that array. Array: { 5, 4, 3, 2, 1} // for the reverse manner Pairs: {5, 4}, {5, 3} , {3, 2}, {3, 1}, {2, 1}, {4, 3}, {4, 2}, {4, 1}, }, {5, 2}, {5, 1} Output: 10 Array: {1, 2, 3, 4, ... Read More

In the field of data structure, a range query is a pre-processing method to operate on some input data in an efficient manner. A range query is responsible to answer any query of the particular input on any data subset. If we want to copy some data columns from a table we need to maintain an index for that particular dataset. An index is a direct link or a key, which is designed to provide an efficient searching process in a data set. It is mainly used to speed up the data retrieving from a lost data source. In mathematics, ... Read More

In the field of data structure, a range query is a pre-processing method to operate on some input data in an efficient manner. A range query is responsible to answer any query of the particular input on any data subset. If we want to copy some data columns from a table we need to maintain an index for that particular dataset. An index is a direct link or a key, which is designed to provide an efficient searching process in a data set. It is mainly used to speed up the data retrieving from a lost data source. In mathematics, ... Read More

Ranging a query is a common database current interest operation present in data structure to restore all the records where the output value lies between an upper and lower boundary. This process works with some input data, to structure them in an efficient manner on any subset of a particular input. The range function, denoted as range() is used to iterate a for loop over a series. We need to declare the start as 0 at the beginning of a process. If somehow we miss this step, the process will run and iterate the loop until the end (-1). A ... Read More

Array is a set of a single non primitive similar data types (values or variables) that stores the elements in a memory with a fixed number of values. After creating an array with certain elements, the length of this data set became fixed. Here non primitive means, these data types can be used to call a method to perform a particular operation which can be null in character. Here the bitwise sum means, sum of certain numbers with an exactly 2 bits set. Bitwise OR denotes that each integer is present in a subarray. It is an adjacent non-void element ... Read More

A string is an object, which represents a sequence of data characters. The strings are the data container which always represented as a text format. It also used to concept, compare, split, join, replace, trim, length, intern, equals, comparison, substring operation. K largest(or smallest) elements in an array using Quick Sort partitioning algorithm. Here is an array R[] with N number of distinct integers. The task is to find that particular element which are strictly greater than all the elements preceding it and strictly greater than at least K elements on its right. The problem states that an array ... Read More

In this article, we will learn how to count inversions of size three in a given array. The goal is to find how many triplets (i, j, k) exist such that i < j < k and arr[i] > arr[j] > arr[k].Understanding Inversion Count Inversion count is a step-counting method by which we can calculate the number of sorting steps taken by a particular array. It is also capable of counting the operation time for an array. But, if we want to sort an array in a reverse manner, the count will be the maximum number present in that array. Array: ... Read More