C++ :

#include <iostream>
using namespace std;
int main() {
    float weight, height, bmi;
    cin >> weight >> height;
    bmi = weight / (height * height);
    if(bmi<18.5){
            cout << "体型：瘦弱";
        } 
        else if(bmi>=18.5 && bmi<24.9){
                cout << "体型：正常"; 
        } 
        else if(bmi>=25 && bmi<29.9){
       cout << "体型：超重"; 
    }
    else{
            cout << "体型：肥胖";
        }
    return 0;
}