#include <iostream>
#include <cmath> // For std::pow
#include <iomanip> // For std::setprecision
// Function to calculate compound interest
double calculateCompoundInterest(double principal, double rate, double years) {
if (principal < 0 || rate < 0 || years < 0) {
std::cerr << "Error: Principal, rate, and years must be non-negative values.\n";
return -1;
}
// Calculate total amount using the compound interest formula
double amount = principal * std::pow((1 + rate / 100), years);
// Return compound interest
return amount - principal;
}
int main() {
double principal = 100000;
double rate = 3.5;
double years = 5;
double compoundInterest = calculateCompoundInterest(principal, rate, years);
std::cout << std::fixed << std::setprecision(2);
std::cout << "Principal Amount: " << principal << "\n";
std::cout << "Annual Interest Rate: " << rate << "%\n";
std::cout << "Years: " << years << "\n";
std::cout << "Compound Interest: " << compoundInterest << "\n";
std::cout << "Total Amount: " << principal + compoundInterest << "\n";
}
/*
run:
Principal Amount: 100000.00
Annual Interest Rate: 3.50%
Years: 5.00
Compound Interest: 18768.63
Total Amount: 118768.63
*/
