R中的约束编程?

Having looked at how elegant some problems can be solved with constraint programming (see e.g. here: https://rosettacode.org/wiki/Zebra_puzzle#Constraint_Programming_Version_2) I wonder whether there exist anything like that in the R-ecosystem...

非常欢迎您提供有关程序包,非R库的包装器甚至本机R代码的任何提示

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