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EasyCSP is an open-source Java library for Constraint Satisfaction Programming. Supports CSPs, CSOPs, discrete object domains, int interval domains, int constraint binarization. Examples include NQueens, Sudoku. (Builds on Sourceforge)

Home Page: http://sourceforge.net/projects/easy-csp-lib/files/easycsp/

License: Apache License 2.0

Java 100.00%
constraint-programming constraint-solver java8 java11 java17 java21 java constraint-optimisation-problem constraint-satisfaction-problem forward-checking

easycsp-lib's Introduction

EasyCSP is an open-source Java library for Constraint Satisfaction Programming.

EasyCSP is an open-source Java library for Constraint Satisfaction Programming.

EasyCSP offers search algorithms for both CSPs and CSOPs.

EasyCSP supports CSPs to be defined using objects or int expressions.

Dependencies

Requires Java 8 or later.

Release Notes

Release 1.3.1

  • refactored: Solution API and generics in general.
  • performance: avoid int-Integer autoboxing for int CSPs.
  • fix: int expression binarization issue.

Release 1.2.1

  • fix: ConflictMinimizing search algorithm bug.
  • feature: added full support (algorithms and API) for int specific CSPs and CSOPs.

Release 1.2.0

  • fix: IntDomain size() bug when containing both positive and negative ints.
  • feature: added int specific model classes, constraint expressions API and specialized search algorithm.

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