Understanding Quick Sort, Search Algorithms, and Sorting Techniques

Q) How does the choice of pivot element affect the running time of the Quick Sort algorithm?

The choice of the pivot in Quick Sort directly affects the balance of the partition and therefore its running time:

  • Good pivot (middle value): Produces nearly equal partitions, leading to O(n log n) time.

  • Bad pivot (smallest or largest element): Produces highly unbalanced partitions, leading to O(n²) time.

Thus, choosing an appropriate pivot (like the median or using randomization) improves average performance.

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10 Foundational Principles for Secure System Design

10 Core Security Principles in One Line

  1. Economy of Mechanism

    Keep it small and simple.

    • Do: Minimize features and Lines of Code (LoC) in the TCB.
    • Don’t: Add non-critical features in the critical path.
    • Why: Fewer bugs, easier audits.
    • Example: Remove optional TLS extensions; use minimal parsing libraries.
  2. Fail-Safe Defaults

    Default deny; whitelist, not blacklist.

    • Do: Permit access only when explicitly allowed; fail-closed on errors.
    • Don’t: Expose services publicly by default.
    • Example: Firewalls drop traffic
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Python Fundamentals: 54 Essential Concepts and Code Examples

Python Fundamentals: 54 Essential Concepts

1. Key Features of the Python Programming Language

  • Python is easy to read and write, making it quick for beginners to learn.
  • It is an interpreted language, meaning it executes code line-by-line.
  • It has a large standard library and supports multiple programming styles (procedural, object-oriented, functional).

Example: Basic Output

print("Hello Python")

2. Different Data Types in Python and Their Usage

  • int – Whole numbers (e.g., 5, -10).
  • float – Decimal numbers
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Understanding Computers: Functions, Features, and Generations

Definition of Computer:

A computer is an electronic device that processes input data according to a set of instructions (programs), stores it, and produces meaningful output as information. It performs four basic operations: Input, Processing, Storage, and Output.

  • It is a data processing machine that can perform arithmetic and logical operations at extremely high speed and accuracy.

  • It is used in every field today due to its efficiency, reliability, versatility, and automation capabilities.

Need and

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Comprehensive Question Bank for Object Oriented Programming

Department of Information Technology

Question Bank (III Sem 2025-26)

Subject: Object Oriented Programming (3SN02)

Subject Faculty: Dr. P.P. Deshmukh

Unit I

  1. Explain Object Oriented Programming principles with real-life examples.

  2. Explain all primitive data types supported by the Java programming language with suitable examples.

  3. Write ‘for’, ‘while’, and ‘do-while’ programs to compute 4 + 8 + 12 + 16 + … + 80.

  4. What are the applications of Object Oriented Programming?

  5. Explain the features of Java.

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Redux State Management Examples and React Hooks Performance

Redux Task Store Implementation

1. Setup and Initial State

Import createStore from Redux. Note: In modern Redux Toolkit, this function is deprecated in favor of configureStore.

const { createStore } = require('redux'); // Or 'import { createStore } from 'redux';'
const initialState = { tasks: [] };
  

2. Action Types & Creators

Define actions for adding and removing tasks.

const ADD_TASK = 'ADD_TASK';
const REMOVE_TASK = 'REMOVE_TASK';

function addTask(task) { // task: { id, description }
  return 
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