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#include <iostream>
using namespace std;
class LandTract()
{
    int length;
    int width;
    int area(int,int);
public:
   bool friend isEqualSize(LandTract ,LandTract);
}
int LandTract()::area(int l,int w)
{
    return l*w;
}
bool isEqualSize(LandTract ab1,LandTract ab2)
{
    if(ab1.area(ab1.length,ab1.width)==ab2.area(ab2.length,ab2.width));
    return true;
    else 
        return false;
}
int main()
{
    LandTract ob1;LandTract ob2;
    cout<<"enter dimension of first tract";
    cin>>ob1.length>>ob1.width;
    cout<<"enter dimension of second tract ";
 
    cin>>ob2.length>>ob2.width;
    bool a=isEqualSize(ob1,ob2);
}

prog.cpp:3:17: error: expected unqualified-id before ')' token
 class LandTract()
                 ^
prog.cpp:11:16: error: expected initializer before '::' token
 int LandTract()::area(int l,int w)
                ^
prog.cpp: In function 'bool isEqualSize(LandTract, LandTract)':
prog.cpp:15:28: error: 'ab1' has incomplete type
 bool isEqualSize(LandTract ab1,LandTract ab2)
                            ^
prog.cpp:3:7: note: forward declaration of 'class LandTract'
 class LandTract()
       ^
prog.cpp:15:42: error: 'ab2' has incomplete type
 bool isEqualSize(LandTract ab1,LandTract ab2)
                                          ^
prog.cpp:3:7: note: forward declaration of 'class LandTract'
 class LandTract()
       ^
prog.cpp:19:5: error: 'else' without a previous 'if'
     else 
     ^
prog.cpp: In function 'int main()':
prog.cpp:24:15: error: aggregate 'LandTract ob1' has incomplete type and cannot be defined
     LandTract ob1;LandTract ob2;
               ^
prog.cpp:24:29: error: aggregate 'LandTract ob2' has incomplete type and cannot be defined
     LandTract ob1;LandTract ob2;
                             ^

Standard output is empty