Temperature Unit Conversion

#include <iostream>
using namespace std;
 
// Write your code here
float readTemp(int raw){
    return raw/10;

}
float readTemp(int raw,char unit){
    
    if(unit == 'F'){
        float F =  (((raw)/10) * 1.8) + 32;
        return  F;
    }else {
        return raw/10;
    }
    
}
 
int main() {
    int raw;
    char unit;
    cin >> raw >> unit;
 
    if (unit == 'D') {
        cout << readTemp(raw);
    } else {
        cout << readTemp(raw, unit);
    }
 
    return 0;
}

Solving Approach