PWM Register Access Control

#include <iostream>

class PWMDriver {
    int ccr_reg;
public:
    // TODO: This member is exposed. Encapsulate it.
    // TODO: Ensure valid range [0, 100].

    PWMDriver() : ccr_reg(0) {}

    void set_ccr(int val){
        if(val > 100){
            ccr_reg = 100;
        }
        else if(val < 0){
            ccr_reg = 0;
        }
        else{
            ccr_reg = val;
        }
    }
    
    // TODO: Add getter if necessary for printing

    int get_ccr(){
        return ccr_reg;
    }
};

int main() {
    int N;
    if (!(std::cin >> N)) return 0;

    PWMDriver driver;

    for (int i = 0; i < N; ++i) {
        int val;
        std::cin >> val;

        // TODO: Refactor this access to use a safe setter method
        driver.set_ccr(val);

        // Output current state
        std::cout << "CCR: " << driver.get_ccr() << std::endl;
    }

    return 0;
}

Solving Approach