Code RoomSliding puzzle solver
HardPrep Room Coding #1297

Sliding puzzle solver

CodingAlgorithms & data structuresSenior–Staff~35 min

On a 2x3 board you have five tiles labeled 1..5 and one empty cell labeled 0. A move slides a tile adjacent (up/down/left/right) into the empty cell. Given the starting `board` as a 2x3 list of ints, return the minimum number of moves to reach the solved state `[[1,2,3],[4,5,0]]`. Return -1 if it is unsolvable.

Implement
sliding_puzzle(board: list[list[int]]) → int
Examples
in[[[1,2,3],[4,0,5]]]out1
What a strong answer looks like

State your approach and its time/space complexity out loud before you optimize. Handle the edge cases (empty input, duplicates, overflow), and say why you chose this over the brute force. Green tests are the floor, not the grade.

0:00 of about 35 min
InputExpectedGot
[[[1,2,3],[4,0,5]]]1not run yetsample