Compound Interest

Medium Operators & Expressions
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Problem Statement

Write a C++ program to compute compound interest using standard formula: A = P * (1 + R/100)^T, and CI = A – P. Use the “ library `pow()` function.

Input Format

Principal (double), Rate (double), and Time (double).

Output Format

Print calculated compound interest formatted to 2 decimal places.

Constraints

P, R, T > 0

Sample Input

1000.0 5.0 2.0

Sample Output

102.50

Explanation

Calculates compound interest using power functions from the cmath library.

Starter Code

#include <iostream>
#include <iomanip>
#include <cmath>

int main() {
    double p, r, t;
    if (std::cin >> p >> r >> t) {
        // Write your code here
    }
    return 0;
}

Limits

  • Time Limit: 1s
  • Memory Limit: 256MB

Embedded C Programming

Updated: March 15, 2026
Intermediate

Embedded systems rely on efficient low-level programming to interact directly with hardware. In this course, you will learn how to write practical Embedded C programs used in real microcontroller-based systems. Rather than focusing only on theory, this course follows a practice-driven approach. Each lesson includes hands-on coding exercises that simulate real firmware development tasks used