Sensor Filter Selection

#include <iostream>
#include <string>
using namespace std;

// Enum for filter modes
enum FilterMode { NONE, LOW, HIGH };

// Function with default argument
int readSensor(int raw, FilterMode mode = NONE) {
    switch (mode) {
        case NONE: return raw;
        case LOW:  return raw / 2;
        case HIGH: return raw / 4;
    }
    return raw; // fallback
}

int main() {
    int raw, modeFlag;
    cin >> raw >> modeFlag;

    if (modeFlag == 0) {
        // Call with default filter mode
        cout << readSensor(raw);
    } else {
        string filterName;
        cin >> filterName;

        FilterMode filter;
        if (filterName == "LOW") {
            filter = LOW;
        } else {
            filter = HIGH;
        }

        cout << readSensor(raw, filter);
    }

    return 0;
}

Solving Approach