# Question

Show that the 8-puizle states are divided into two disjoint sets, such that no state in one set can be transformed into a state in the other set by any number of moves. Devise a procedure that will tell you which class a given state is in, and explain why this is a good thing to have for generating random states.

## Answer to relevant Questions

Consider the n-queens problem using the “efficient” incremental formulation given. Explain why the state space size is at least and estimate the largest ii for which exhaustive exploration is feasible. Prove that uniform-cost search and breadth-first search with constant step costs are optimal when used with the GRAPH-SEARCH algorithm. Show a state space with constant step costs in which GRAPH-SEARCH using iterative ...Prove each of the following statements:a. Breadth-first search is a special case of uniform-cost search.b. Breadth-first search, depth-first search, and uniform-cost search are special cases of best-first search.c. ...Sometimes there is no good evaluation function for a problem, but there is a good comparison method: a way to tell whether one node is better than another, without assigning numerical values to either. Show that this is ...Consider the problem of constructing (not solving) crossword puzzles:5 fitting words into a rectangular grid. The grid, which is given as part of the problem, specifics which square are blank and which are shaded. Assume ...Post your question

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