ai :: BacktrackSolver :: state
Do not modify it directly: the solver will do that by its own use of
problem.apply_action
and problem.backtrack
.
# The current state.
# Do not modify it directly: the solver will do that by its own use of
# `problem.apply_action` and `problem.backtrack`.
var state: S
lib/ai/backtrack.nit:125,2--128,13