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Solve the "N Queens" problem #148

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julianhyde opened this issue May 20, 2022 · 0 comments

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julianhyde commented May 20, 2022

Solve the N Queens problem. There is a program in Standard ML at Rosetta Code but Morel currently throws StackOverflowError for n > 7.

For n = 8, the program generates the solution (8,4),(7,2),(6,7),(5,3),(4,6),(3,8),(2,5),(1,1)

 .  .  X  .  .  .  .  .
 .  .  .  .  .  X  .  .
 .  .  .  X  .  .  .  .
 .  X  .  .  .  .  .  .
 .  .  .  .  .  .  .  X
 .  .  .  .  X  .  .  .
 .  .  .  .  .  .  X  .
 X  .  .  .  .  .  .  .

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Tail call optimization #151

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