sai o dau vay mn giup minh voi a

#include <bits/stdc++.h>
using namespace std;

int main() {
    float w, h, t;
    cin >> w;
    cin >> h;
    t = w / (h * h);

    if (t < 18.5)
        cout << "Thieu can";
    else if (t >= 18.5 && t <= 22.9)
        cout << "Binh thuong";
    else
        cout << "Thua can";

    return 0;
}

#include <bits/stdc++.h>
using namespace std;
double h,w;
int main()
{
    cin>>w>>h;
    if(w/(h*h)<18.5) 
    cout<<"Thieu can";
    else if(w/(h*h)>=18.5&&w/(h*h)<=22.9) 
    cout<<"Binh thuong";
    else 
    cout<<"Thua can";
}

//ac r