Free practice · multiple-choice · medium

Practice

Find possible positions

Five tasks use positions 1 through 5. Task R must occur after position 2 and before position 5. Which positions could R use? Select all that apply.

Constraint board

Place forced items before testing open positions

  1. RecordWrite each constraint
  2. ForcePlace fixed items and chains
  3. PropagateUpdate remaining positions
  4. TestTry valid alternatives
  5. VerifyCheck every original rule

Translate every precedence, adjacency, window, and exclusion rule into visible placement evidence.

Choose all that apply