Circle Class

Easy Classes & Objects
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Problem Statement

Write a C++ program defining a `Circle` class with radius, computing its area and circumference (use PI = 3.14159).

Input Format

A single floating-point number representing radius.

Output Format

Print area and circumference.

Constraints

Radius > 0

Sample Input

7.0

Sample Output

Area: 153.94, Circumference: 43.98

Explanation

Uses mathematical constants inside object methods.

Starter Code

#include <iostream>
#include <iomanip>

class Circle {
public:
    double radius;
    
    void compute() {
        // Write your code here
    }
};

int main() {
    Circle c;
    if (std::cin >> c.radius) {
        c.compute();
    }
    return 0;
}

Limits

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

Embedded C Programming

Updated: March 15, 2026
Intermediate

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