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In Java, List and Set are both interfaces that belong to the Collection framework. Both interfaces extend the Collection interface. They are both used to store a collection of objects as a single unit. Before JDK 1.2, we used to use Arrays, Vectors, and Hashtable for grouping objects as a single unit. Difference Table The following are the key differences between List and Set − Sr. No. ... Read More
Problem Statement In this problem, we are given an array of integers, and we have to select a particular element from the array such that the sum of absolute differences between that element and all other elements is minimized. Example 1 Input: arr = [3, 1, 2, 5, 4] Output: 6 Explanation: If we select 3 as the element, the sum of differences is: |3-1| + |3-2| + |3-3| + |3-4| + |3-5|= 2 + 1 + 0 + 1 + 2 = 6 ... Read More
What is DeepSeek? DeepSeek is one of the most advanced AI platform for its language Modes, high-performance and cost-efficient. DeepSeek offers various models such as DeepSeek-V3 and DeepSeek-R1 are basically designed for tasks like coding, reasoning etc. It offers open-source alternatives to other AI, making it accessible for developers and businesses. Prerequisites To Install DeepSeek DeepSeek AI application can be installed on various Operating systems. such as - Operating System 1.Windows 10 or later 2.Linux(Ubuntu 18.04 or later) 3.macOS 10.15 or later Hardware requirements 1. CPU Multi-core processor (Quad- core or higher recommended) 3. RAM Minimum 8GB (16GB recommended for ... Read More
In this article, we will learn how to reduce a given array by replacing all subarrays with values less than a given number K by their sum. This process simplifies the array by merging smaller values. Given an array of integers and a value K, we need to find all contiguous subarrays whose values are less than K and replace them with their sum. After performing this reduction, the resulting array will have fewer elements, as the smaller subarrays will be combined into one. Let's consider an example. Given the array: [1, 2, 3, 5, 1, 4, 6, ... Read More
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