mọi người giúp mik với 

c++ nha 

cảm ơn trước

#include <iostream>
#include <cmath>
#include <iomanip>
using namespace std;
int main() {
    double a,b,t1,t2;
    cin>>a>>b;
    t1=(pow(a,2)+pow(b,2))/2;
    t2 =(abs(a)+abs(b))/2;
    cout<<fixed<<setprecision(6)<<t1<<endl;
    cout<<fixed<<setprecision(6)<<t2<<endl;
    return 0;
}

/**
 *    author:  cody
 *    created: 10.08.2024 08:07
**/

#include <bits/stdc++.h>

using namespace std;
main() {
 double a, b;
 cin >> a >> b;
 cout << setprecision(6) << fixed;
 cout << (a * a + b * b) / 2 << '\n' << (a + b) / 2;
 return 0;
}