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In this article, we'll discuss the problem of finding the longest prefix in a string that has the highest frequency (appears most often) across the string. We'll break it down step-by-step and show how to efficiently solve this problem. Given a string, we need to find the longest prefix (the starting sequence) that appears most often in the string. A prefix is simply a substring that begins at the start of the string and includes one or more characters. Let's understand with an example. For the string 'abcabc', the prefixes are: a ... Read More
In C++, a name conflict occurs when two or more identifiers, such as variables, functions, or classes, share the same name within the same scope. This creates ambiguity because the compiler may struggle to distinguish between them, leading to compilation errors. In this article, we will discuss name conflicts in C++ and also ways to resolve them, ensuring your code remains clear and error-free. Name Conflict Error in C++ Name conflicts typically occur when the same name is used for different variables, functions, or classes in conflicting or overlapping scopes, or when they are declared globally or within the ... Read More
In this article, we will learn how to pass an array into a lambda function in C++. A lambda function is a small, anonymous function that doesn't have a name and can access variables from the surrounding code. Passing an array to a lambda function is a bit different from passing a single value because you need to define how the array will be handled inside the lambda. Let's see how to do that. Passing an Array into a Lambda Function We will cover four main methods to pass arrays into lambda functions in C++: ... Read More
In this article, we will learn how to initialize a std::multiset with a custom comparator in C++. A multiset is similar to a set, except that it allows duplicate elements. It stores elements in a sorted order based on a comparison function. By default, elements are compared using the < (less-than) operator. However, with a custom comparator, we can define how elements should be compared. For example, if we define a custom comparator that sorts elements in descending order and insert the following elements into the multiset: Input: 3 12 5 8 1 7 9 4 6 Output: {12, 9, ... Read More
In this article, we are going to learn how we can check whether two given numbers are co-prime in Python using different approaches. What are Co-prime Numbers? Two numbers are said to be co-prime numbers if they have no common factors other than 1. Checking if two numbers are co-prime We can check if two given numbers are co-prime numbers by finding their GCD (Greatest Common Factor). GCD is also known as HCF (Highest Common Factor). If the GCD of two numbers is 1, then those numbers are co-prime numbers; otherwise, they are not co-prime numbers. Below are the examples ... Read More
There are a total of 365 days in a normal year and 366 days in a leap year. In this article, we are going to learn how we can find the number of days in a month of a given particular year. Here, we will learn about different approaches for calculating the number of days in a given month using C++. How to Find the Number of Days in a Given Month? There are a total of 12 months in a year. The number of days in a given month from 1 to 12 in a given leap or non-leap ... Read More
In today's time, everyone needs things instantly, whether it is information or products. Hence, the demand for quick commerce has increased, but the most important thing users want to know is how these companies manage quick commerce. So, Let's dive into the key factors that make quick commerce incredibly efficient. What is Quick Commerce? Quick commerce means that you can deliver your products and services instantly within 10-20 minutes at the doorstep of every customer. It is also called Q-commerce. The food delivery industry started this approach a long time ago but slowly it advanced its approach and now it ... Read More
Disk space is a precious resource on any Linux system. Whether you're running a small home server or a large enterprise cluster, it's crucial to monitor disk usage to prevent running out of space, identify potential issues, and optimize storage allocation. This comprehensive tutorial will explore various command-line tools and techniques for effectively monitoring disk usage on Linux, empowering you to keep your storage under control. Command-Line Tools for Monitoring Disk Usage Linux provides a rich set of command-line tools for monitoring disk space. Here are some of the most essential ones − df (Disk Free) The df command provides ... Read More
Whether you're examining logs, configuring system settings, or writing scripts, the ability to quickly view and manipulate file content is essential. Three fundamental commands that empower you to do just that are head, tail, and cat. In this tutorial, we will delve into these commands, exploring their functionalities, options, and practical use cases. Introducing cat: Concatenate and Display Files The cat command (short for "concatenate") is the most basic yet versatile tool for displaying file content. Its primary function is to read files and print their contents to standard output (your terminal). Basic Usage of cat Command To display the ... Read More
A grid is a 2-dimensional arrangement of squares divided into rows and columns. From a given N*N square grid we have to calculate the total number of squares possible. There are multiple ways to find the number of squares in a given grid. In this article, we are going to learn about various approaches for calculating the number of squares in a given grid of size N*N. Direct Formula for Finding the Number of Squares in an N*N Grid The direct formula for finding the total number of squares in an N * N grid is Total Number of ... Read More