What are DS: storing and managing data so it can be reused. EX) lists, queues, trees, bag, dictionaries, graphs. OOP Principles: encapsulation, abstraction, inheritance, polymorphism.
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Bags: finite collection of objects in no order. EX) shopping bags, piggy bank. Core Operations: add, remove, contains, clear, getFrequencyOf, isEmpty, toArray (return items in bag as array)...
An interdisciplinary field combining statistics, computer science, and business knowledge.
Its goal is to extract valuable insights and knowledge from data (both structured and unstructured).
It answers key business questions: what happened, why, what will happen, and what to do about it.
The process involves collecting, cleaning, processing, analyzing, and communicating data insights.
It's the process of using sample data to
Euler’s Theorem:
If gcd(a, n) = 1, thena^φ(n) ≡ 1 (mod n)
Step 1: Check gcdgcd(3, 10) = 1 ✅
Step 2: Compute φ(10)10 = 2 × 5φ(10) = φ(2) × φ(5) = (2-1)*(5-1) = 1*4 = 4
Step 3: Substitute in theorem3^φ(10) = 3^4
Step 4: Compute 3^4 mod 103^4 = 8181 mod 10 = 1 ✅
Conclusion:3^4 ≡ 1 (mod 10) → Euler’s theorem holds.
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Step 1: Prime factorization240 = 2^4 × 3 × 5
Step 2: Apply Euler’s totient formulaφ(n) = n × (
# पल्लवन: एक विस्तृत परिचय
## परिचय
हिंदी साहित्य में पल्लवन एक महत्वपूर्ण शब्द है, जो किसी विचार या भाव को विस्तार से प्रस्तुत करने की एक शैली है। पल्लवन के द्वारा लेखक या वक्ता अपने विचारों को विस्तार
समास: एक विस्तृत परिचय
परिचय
हिंदी व्याकरण में समास एक महत्वपूर्ण विषय है, जो शब्दों के निर्माण और उनके अर्थों को समझने में मदद करता है। समास के द्वारा दो या दो से अधिक शब्द मिलकर एक नया शब्द बनाते
Definition:
Cyber terrorism refers to the use of the Internet and computer networks to cause disruption, fear, or harm to society, governments, or organizations for political, religious, or ideological motives.
Explanation:
In cyber terrorism, attackers use digital tools such as viruses, worms, ransomware, or denial-of-service (DoS) attacks to damage critical infrastructure, steal sensitive data, or spread panic among people. It targets systems like defense, banking, communication, power grids, and
What is Economics? Economics is about choices. We have limited resources (like money, time, materials) but unlimited wants (we want many things). -economics studies how people use what they have to get what they need or want. Needs vs Wants- Needs-Must-have for survival, food, water, clothes Wants- Nice-to-have, not necessary, iPhone, car, vacation, games Scarcity = Not enough for everyone •There is limited gold, water, oil, money. •Because of that, people must choose what to produce, what to
Java Program to Convert String to Upper Case
public class UpperCase
{
public static void main(String[] args)
{
String str = "hello world";
System.out.println(str.toUpperCase());
}
}
Explain JVM and JDK
JVM (Java Virtual Machine): The runtime engine that executes the Java bytecode. It's an abstract machine that makes Java platform-independent ("Write Once, Run Anywhere"). The JVM interprets the compiled .class files (bytecode) and converts them into machine code for the operating system