Important facts

Question

Fact 1:
The root is at the top of the tree

Fact 2:
Counting starts from zero (0), not one (1)

Fact 3:
A parent may kill its children if the task assigned to them is no longer needed

Fact 4:
Most of the hacking scenes in movies are complete bullshit

Fact 5:
When you format your hard drive, the files are not deleted

Fact 6:
That '=' != '=='

Answer 1

fact 7: '==' != '==='