Temperature Unit Conversion

#include <iostream>
using namespace std;
 
// Write your code here
 // Default: convert raw reading to Celsius
float readTemp(int raw) {
    return raw / 10.0f;
}
 
// Overloaded: convert to Celsius or Fahrenheit
float readTemp(int raw, char unit) {
    float celsius = raw / 10.0f;
    if (unit == 'F') {
        return celsius * 1.8f + 32.0f;
    }
    return celsius; // '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