Graph Theory XVII Backtracking V
Part I 马甲题Question 1 Problem Beautiful ArrangementProblem 2 Infinite Loop Around the Dinner TableQuestion 3 Letter Case PermutationPart II: Pad/Board/Gamming(N Queens 母题)Question 1 Letter Combination of a Phone NumberProblem 2 Grid IlluminationProblem 3 Minimum time to finish all jobs
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