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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 to Calculate Simple Interest Using Inline Function

C++ Inline Function – Simple Interest Program

C++ Program to Calculate Simple Interest Using Inline Function


#include <iostream>
using namespace std;

inline float simpleInterest(float p, float r, float t)
{
    return (p * r * t) / 100;
}

int main()
{
    float p, r, t;
    cout << "Enter principal, rate and time: ";
    cin >> p >> r >> t;

    cout << "Simple Interest = " 
         << simpleInterest(p, r, t);
    return 0;
}

📘 Explanation:

This program demonstrates the use of an inline function in C++ to calculate Simple Interest.

The inline function simpleInterest() takes three parameters: principal amount (p), rate of interest (r), and time period (t). It calculates simple interest using the formula: 

Simple Interest = (P × R × T) / 100

Since the function is small and frequently used, declaring it as inline helps improve performance by reducing function call overhead.

🧾 Sample Output:

Enter principal, rate and time:
1000 5 2
Simple Interest = 100

🔑 Keywords:

C++ inline function, simple interest program in C++, financial calculation in C++, inline function example, C++ basics

🔍 Search Description:

Learn how to calculate simple interest in C++ using an inline function. This program explains the concept with formula, code, and sample output.

📌 Hashtags:

#CPlusPlus #InlineFunction #SimpleInterest #CPPBasics #Programming #1printf

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