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C Program to Check Prime Number Using Efficient Logic

  Introduction A prime number is a number that has exactly two distinct positive divisors: 1 and itself. In this program, we check whether a given number is prime or not using a simple and efficient logic. This type of program is commonly used in mathematics, competitive programming, and basic algorithm learning for beginners in C programming. Problem Statement The task is to write a C program that determines whether a given integer is a prime number or not. The program takes a single integer input from the user and analyzes its divisibility. If the number has no divisors other than 1 and itself, it should be identified as a prime number; otherwise, it is not prime. This problem is important in number theory and has practical relevance in areas such as cryptography, data validation, and algorithm design.  Algorithm / Logic Explanation To check whether a number is prime, we need to verify that it is not divisible by any number other than 1 and itself. The algorithm follows a si...
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C++ Program for Multi-Level Inheritance (Grandparent → Parent → Child)

C++ Program for Multi-Level Inheritance (Grandparent → Parent → Child)

✅ C++ Program to Demonstrate Multi-Level Inheritance

#include <iostream>
using namespace std;

class grandparent {
  public:
    void display1() {
        cout << "Hello I am your grandparent:\n";
    }
};

class parent : public grandparent {
  public:
    void display2() {
        cout << "Hello I am parent:\n";
    }
};

class child : public parent {
  public:
    void display3() {
        cout << "Hello I am child:\n";
    }
};

int main() {
    child obj;
    obj.display1();
    obj.display2();
    obj.display3();
}

📘 Explanation:

This program demonstrates the concept of multi-level inheritance in C++. - The grandparent class defines display1(). - The parent class inherits from grandparent and adds display2(). - The child class inherits from parent and adds display3(). - Thus, an object of the child class can access functions from all three classes.

🧾 Sample Output:

Hello I am your grandparent:
Hello I am parent:
Hello I am child:

🔑 Keywords:

C++ multi-level inheritance example, grandparent parent child program, inheritance in C++, OOP in C++, C++ object oriented programming

📌 Hashtags:

#CPlusPlus #Inheritance #MultiLevelInheritance #OOP #CppExamples #CodingForBeginners

🔍 Search Description:

This C++ program demonstrates multi-level inheritance where a child class inherits from a parent, which in turn inherits from a grandparent class. Includes example code, explanation, and sample output.

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