Temperature Unit Conversion

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

 float readTemp(int raw , char unit)
 {
    if(unit == 'C')
    {
        return raw*0.1;
    }
    else if(unit == 'F'){
         float F;
         F = (raw*1.8*0.1) + 32;
         return F;
    }

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