C++ Code that display the largest number

Write a program which input three numbers and display the largest number using ternary operator.

#include <iostream.h>
#include <conio.h>

int main()
{
 int a,b,c,greatest;
 cout<<"Enter three numbers : ";
 cin>>a>>b>>c;
 greatest=(a>b&&a>c)?a:(b>c)?b : c;
 cout<<"Greatest number is "<<greatest;

 getch();
 return 0;
}