Calorie Calculator

#include <iostream>
#include <string>
#include <cmath>

using namespace std;

int main() {
    char gender;
    cin >> gender;

    double weight, height, basalMetabolicRate, coefficientActivity;
    cin >> weight >> height;

    int age;
    cin >> age;
    cin.ignore();

    string physicalActivity;
    getline(cin, physicalActivity);

    if (gender == 'm') {
        basalMetabolicRate = 66 + weight * 13.7 + height * 500 - 6.8 * age;
    }
    else {
        basalMetabolicRate = 655 + weight * 9.6 + height * 180 - 4.7 * age;
    }

    if (physicalActivity == "sedentary") {
        coefficientActivity = 1.2;
    }
    else if (physicalActivity == "lightly active") {
        coefficientActivity = 1.375;
    }
    else if (physicalActivity == "moderately active") {
        coefficientActivity = 1.55;
    }
    else {
        coefficientActivity = 1.725;
    }

    int calories = ceil(basalMetabolicRate * coefficientActivity);

    printf("To maintain your current weight you will need %i calories per day.\n", calories);
    return 0;
}