using namespace std;
int main ()
{
int a;
int b;
int c;
int d;
int max;
cout<<"nhap vao bon so a,b,c,d: ";
cin>>a>>b>>c>>d;
if(a>b)
{
max = a;
//cout<<"so lon nhat la "<<a;
}
else
{
max = b;
//cout<<"so lon nhat la "<<b;
}
if(c > max)
{
max = c;
//cout<<"so lon nhat la "<<c;
}
if(d > max)
{
max = d;
//cout<<"so lon nhat la "<<d;
}
cout<<"So lon nhat la: "<<max;
//tuong tu nhu 3 so hay 2 so va nhieu hon
return 0;
}
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