Tic-Tac-Toe AI: How to Make the Tree?

Question

I\'m having a huge block trying to understand \"trees\" while making a Tic-Tac-Toe bot. I understand the concept, but I can\'t figure out to implement them.

Can someone

Answer 1

If you want to generate the tree in memory (which is not necessary), perhaps an algorithm like the following could be used (pseudo-code):

GenTree(State s):
  T <- empty tree  // T is a tree of States
  SetRoot(T, s)

  ForEach (s' in Successors(s)):
    AddChild(T, GenTree(s'))

  return T

// Call it
GenTree(currentMove)

where

Successors(s)  // returns a list of successor states of s
AddChild(p, n)  // adds n to the list of p's children