一句话：提出用 miniKanren 约束逻辑编程统一解决 Racket 中七个编程挑战的优雅方法。
本文是一篇函数式珍珠，围绕 Racket 中的七个编程挑战，提出一种统一而优雅的求解方法。作者不针对每个问题分别设计算法，而是将问题建模为约束逻辑程序，并借助嵌入 Racket 的 miniKanren 进行求解。该方法体现了约束逻辑编程在表达和复用上的优势：同一套关系式与约束求解机制可覆盖多个看似不同的编程任务。论文通过七个具体挑战展示该方法的统一性与简洁性，为函数式编程社区提供了一种以关系式编程和约束求解为核心的通用问题求解视角。
We present seven programming challenges in Racket, and an elegant, unified approach to solving them using constraint logic programming in miniKanren.
@article{ByrdBRM17,
title = {A unified approach to solving seven programming problems (functional pearl)},
author = {William E. Byrd and Michael Ballantyne and Gregory Rosenblatt and Matthew Might},
journal = {Proceedings of the ACM on Programming Languages},
volume = {1},
number = {ICFP},
year = {2017},
doi = {10.1145/3110252}
}