<summary>Constraint Programming (CP) and Routing extensions.</summary> Constraint Programming (http://en.wikipedia.org/wiki/Constraint_programming) is a technology issued from IA and used in Operations Research. Vehicle Routing (http://en.wikipedia.org/wiki/Vehicle_routing) is a useful extension that is implemented on top of the CP library. - constraint_solver.h: The point of entry for all constraint programming users. - constraint_solveri.h: An additional file that helps extending the constraint programming library. - routing.h: The point of entry for routing problems. - constraint_solver.swig: SWIG instructions to wrap the C++ library in python and java. - model.proto: Holds the description of a constraint programming problem, i.e. the input of the solver. - assignment.proto: Holds the solution of a CP problem. - search_limit.proto: Holds parameters to limit the search space within the CP solver, which is important for performance. - demon_profiler.proto: Holds the timeline and execution profile of constraints and demons (daemons). C++ examples are available under examples/cpp directory. C# examples are available under examples/csharp directory. Python examples are available under examples/python directory. Java examples are available in the examples/com/google/ortools/samples directory.