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In what manner is a state-space tree for a backtracking algorithm constructed?

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in Data Structures & Algorithms II by (89.2k points)
In what manner is a state-space tree for a backtracking algorithm constructed?

(a) Depth-first search

(b) Breadth-first search

(c) Twice around the tree

(d) Nearest neighbour first

This question was posed to me during an online interview.

The question is from Backtracking in division Backtracking of Data Structures & Algorithms II

1 Answer

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Best answer
The correct choice is (a) Depth-first search

The explanation is: A state-space tree for a backtracking algorithm is constructed in the manner of depth-first search so that it is easy to look into.

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