There are three (3) poles with blocks of two different colours. The colours are labelled as A and B. There are three (3) blocks for each colour, which make up to a total of six (6) blocks. A block has to always be on a pole. When removing a block from a pole, the top block will be removed first. After the removal, the block must be placed onto another pole and become the top block of the new pole. Each pole can only hold three (3) blocks maximum. The initial arrangement of the pole and blocks are shown in Figure 2. A B A A B B Figure 2: Initial arrangement of blocks on poles You are tasked to find the solution to place the blocks with the same colour onto the same pole with the least number of movement. al Describe the differences between breadth.first search and uniform.

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There are three (3) poles with blocks of two different colours. The colours are labelled
as A and B. There are three (3) blocks for each colour, which make up to a total of six
(6) blocks.
A block has to always be on a pole. When removing a block from a pole, the top block
will be removed first. After the removal, the block must be placed onto another pole
and become the top block of the new pole. Each pole can only hold three (3) blocks
maximum.
The initial arrangement of the pole and blocks are shown in Figure 2.
A
B
A
A
B
B
Figure 2: Initial arrangement of blocks on poles
You are tasked to find the solution to place the blocks with the same colour onto the
same pole with the least number of movement.
a) Describe the differences between breadth-first search and uniform-
cost search and determine which of them is more suitable to accom-
plish the task. State the reason of the selection.
b) Using the search algorithm that has been selected in (a) to find the
solution. Specify the actions and clearly show the steps of expanding
the search tree. You may ignore the actions that do not change the
state.
Transcribed Image Text:There are three (3) poles with blocks of two different colours. The colours are labelled as A and B. There are three (3) blocks for each colour, which make up to a total of six (6) blocks. A block has to always be on a pole. When removing a block from a pole, the top block will be removed first. After the removal, the block must be placed onto another pole and become the top block of the new pole. Each pole can only hold three (3) blocks maximum. The initial arrangement of the pole and blocks are shown in Figure 2. A B A A B B Figure 2: Initial arrangement of blocks on poles You are tasked to find the solution to place the blocks with the same colour onto the same pole with the least number of movement. a) Describe the differences between breadth-first search and uniform- cost search and determine which of them is more suitable to accom- plish the task. State the reason of the selection. b) Using the search algorithm that has been selected in (a) to find the solution. Specify the actions and clearly show the steps of expanding the search tree. You may ignore the actions that do not change the state.
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