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In this article, we will learn to convert a HashSet to a TreeSet in Java. Converting from one type of collection to another is a simple process when we require them to change their behavior or the nature of our data structure. Why Convert HashSet to TreeSet? For the following operations, we can convert a HashSet to a TreeSet − Sorted Order: TreeSet maintains elements in ascending order. Range-Based Operations: It supports operations like headSet(), tailSet(), and subSet(). NavigableSet Features: TreeSet provides methods like higher(), lower(), ceiling(), ... Read More
In this article, we will implement the linear congruential generator for pseudo random number generation in Java. Pseudo random number generator (PRNG) are mainly used in simulations, cryptography, or mathematical tasks. What is an LCG? A Linear Congruential Generator (LCG) is a technique to generate a sequence of numbers that looks like random numbers but are actually determined. It is one of the reasons to call it a pseudo-random number. The Linear Congruential Generator (LCG) technique generates a random number based on the previous number and uses linear recurrence to generate the sequence of the random number. Mathematical Formula We can ... Read More
The average or mean of an array is a basic mathematical operation in programming. The average is used in analytics, finance, and reporting. One of the real-life applications is a website that calculates the average rating of a product or the average score of a test. In this article, we are going to learn how we can calculate the average of an array of numbers in PHP using different approaches. What is Average? The average is obtained by calculating the sum of all elements in an array and then dividing the sum by the total number of elements ... Read More
In this problem, we are given an array and we have to rearrange the elements of the array such that for each index i, arr[i] = i. We have to rearrange the elements so that each element is in the position corresponding to its value. Scenario 1 Input: [3, 0, 2, 1] Output: [0, 1, 2, 3] Element 3 is the largest, so it is moved to the last index, 0 is the smallest element, so itismoved to the first index, 2 is moved to the third index, and 1 is moved to the second index. Scenario 2 ... Read More
JavaScript is a dynamic computer programming language. It is lightweight and most commonly used as a part of the web pages, whose implementation allows a client-side script to interact with a user and to make dynamic pages. It is an interpreted programming language with object-oriented capabilities. Advantages of JavaScript The advantages of using JavaScript are the following − Less server interaction − You can validate user input before sending the page off to the server. This saves server traffic, which means less load on your server. Immediate feedback to the ... Read More
To enable JavaScript in Internet Explorer (IE), follow the below-given steps: Opening Internet Options Click the gear icon on the right-hand side: Navigating to Security Settings Now, a dialog box will open. Go to the Security tab and click Custom level. After reaching the Security Settings, go to Scripting, then Active Scripting. Enabling Active Scripting Click Enable to enable JavaScript and press Ok. Now, JavaScript will enable after clicking Ok. Conclusion Once you enable Active Scripting and save the changes, JavaScript will be activated in Internet Explorer. Restarting the browser may be required for the settings to take effect.
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