Temperature Unit Conversion

#include <iostream>
using namespace std;
 
// Write your code here
float readTemp(int raw)
{
    return raw*0.1f;

}
float readTemp(int raw,char unit)
{
    float res;
    if(unit == 'C')
    {
        res = 0.1f * raw;

    }
    else if(unit == 'F')
    {
        res = (0.1f * raw) * 1.8f + 32.0f; 
    }

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