Depth-first search Depth-first search Expand deepest unexpanded node Expand deepest unexpanded node ccessors at fron frimge=LIFO queue,ie.,put ccessors at fron Depth-frst searcl五 Depth-first search Expand deepest unexpanded node Expand deepest unexpanded node mplenmetatiOFoaueue.e,p implenetatiCoapeue.ie,Py front 606如西的 ●0⊙00o Depth-first search Depth-first search Expand depest unexpanded node Depth-first search Expand deepest unexpanded node Implementation: fringe = LIFO queue, i.e., put successors at front A B C D E F G H I J K L M N O Chapter 3 43 Depth-first search Expand deepest unexpanded node Implementation: fringe = LIFO queue, i.e., put successors at front A B C D E F G H I J K L M N O Chapter 3 44 Depth-first search Expand deepest unexpanded node Implementation: fringe = LIFO queue, i.e., put successors at front A B C D E F G H I J K L M N O Chapter 3 45 Depth-first search Expand deepest unexpanded node Implementation: fringe = LIFO queue, i.e., put successors at front A B C D E F G H I J K L M N O Chapter 3 46 Depth-first search Expand deepest unexpanded node Implementation: fringe = LIFO queue, i.e., put successors at front A B C D E F G H I J K L M N O Chapter 3 47 Depth-first search Expand deepest unexpanded node Implementation: fringe = LIFO queue, i.e., put successors at front A B C D E F G H I J K L M N O Chapter 3 48