Temperature Unit Conversion

#include <iostream>
using namespace std;
 
// Write your code here


float readTemp(int raw, char unit) {
    return unit == 'F' ? raw / 10 * 1.8 + 32 : raw / 10;


}
float readTemp(int raw) {
    return readTemp(raw, 'C');
}
int main() {
    int raw;
    char unit;
    cin >> raw >> unit;
 
    if (unit == 'D') {
        cout << readTemp(raw);
    } else {
        cout << readTemp(raw, unit);
    }
 
    return 0;
}

Solving Approach