Temperature Unit Conversion

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

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