ADCChannel Constructor Validation

#include <iostream>
using namespace std;

// Write your ADCChannel class here
class ADCChannel {
    private: 
        int channel; 
        int resolution;
    public: 
        ADCChannel(int ch, int res) {
            if (ch<0) channel = 0;
            else if (ch>15) channel = 15; 
            else channel = ch; 
            if (res== 8 || res==10 || res==12) resolution = res; 
            else resolution = 12; 
        }

        void print () {
            cout << "CH=" << channel << " RES=" << resolution;
        }
};

int main() {
    int ch, res;
    cin >> ch >> res;

    ADCChannel adc(ch, res);
    adc.print();

    return 0;
}

Solving Approach