计算BMI

#include <iostream>
#include <string>
using namespace std;

float calculateBMI(float weight, float height);
string categorizeBMI(float bmi);
void displayResult(float bmi, string category);

int main(){
    char continueProgram = 'y';
    while (continueProgram == 'y' || continueProgram == 'Y'){
        float weight, height;

        cout << "Enter weight in kilograms: ";
        cin >> weight;
        cout << "Enter height in meters: ";
        cin >> height;

        float bmi = calculateBMI(weight, height);

        string category = categorizeBMI(bmi);

        displayResult(bmi, category);

        cout << "Do you want to calculate BMI for another person? (y/n): ";
        cin >> continueProgram;
    }

    cout << "Thank you for uing the BMI Calculator. Goodbye!" << endl;
    return 0;
}

float calculateBMI(float weight, float height){
    return weight / (height * height);
}

string categorizeBMI(float bmi){
    if (bmi < 18.5){
        return "Underweight";
    } else if (bmi >= 18.5 && bmi < 24.9){
        return "Normal weight";
    } else if (bmi >= 25 && bmi < 29.9){
        return "Overweight";
    }else{
        return "Obesity";
    }
}

void displayResult(float bmi, string category){
    cout << "Your BMI is: " << bmi << endl;
    cout << "BMI Cateogry: " << category << endl;
}