Find greatest from three values | If and if else

Write a program that input three numbers from user and display the greater number.

# include <iostream>

using namespace std;

void main() {

       int a;

       int b;

       int c;

       cout<<"Please enter the Value of A :";

       cin>>a;

       cout<<"Please enter the Value of B :";

       cin>>b;

       cout<<"Please enter the Value of C :";

       cin>>c;

//here the condition is used that whether the a is greater than b and must that b is less than c

       if(a>b && b<c)

             cout<<"The value of A is the greatest"<<endl;

       if(b>c)

//condition is tested that either b is greater than c or not

             cout<<"The value of B is the greatest"<<endl;

       else

              cout<<"The value of C is the greatest"<<endl;

}