#include<bits/stdc++.h> using namespace std; int main() { cout<<"400.00"; return 0; }

👀️

#include<bits/stdc++.h>
using namespace std;
double ans;
int main(){
    printf("%.2lf",ans=400.00);
    return 0;
}

😄

#include<bits/stdc++.h> using namespace std; double h,hitle; int main() { h=2.0150/15; hitle=0.5(15+25)*h; cout<<fixed<<setprecision(2)<<hitle; }