#include <iostream>
using namespace std;
int main()
{
float hs11,hs12,hs2,hs3,tb;
cout<<"CHUONG TRINH TINH DIEM TIN HOC\n";
cout<<"=============o0o=============";
cout<<"\nNhap vao diem cua hoc sinh : ";
cin>>hs11>>hs12>>hs2>>hs3;
tb=(hs11+hs12+hs2*2+hs3*3)/7...