32 lines
777 B
Plaintext
32 lines
777 B
Plaintext
|
|
#I "../../bin"
|
|
#r "Google.OrTools.dll"
|
|
|
|
open Google.OrTools.ConstraintSolver
|
|
|
|
let solver = new Solver("pheasant")
|
|
|
|
// Variables
|
|
let p = solver.MakeIntVar(0L, 20L, "pheasant")
|
|
let r = solver.MakeIntVar(0L, 20L, "rabbit")
|
|
|
|
// Constraints
|
|
let legs = solver.MakeSum(solver.MakeProd(p, 2L), solver.MakeProd(r, 4L))
|
|
let heads = solver.MakeSum(p, r)
|
|
|
|
let constraintLegs = solver.MakeEquality(legs, 56)
|
|
let constraintHeads = solver.MakeEquality(heads, 20)
|
|
|
|
solver.Add(constraintLegs)
|
|
solver.Add(constraintHeads)
|
|
|
|
let vars = new IntVarVector([|p; r|])
|
|
let db = solver.MakePhase(vars, Solver.CHOOSE_FIRST_UNBOUND, Solver.ASSIGN_MIN_VALUE)
|
|
|
|
// Solve
|
|
solver.NewSearch(db)
|
|
|
|
while (solver.NextSolution()) do
|
|
printfn "rabbits: %d, pheasants: %d" (r.Value()) (p.Value())
|
|
|
|
solver.EndSearch() |