title: How can i add an array of values to Google ortools versus a lower and upper bound?
body: <p>In the documentation and all examples I can find... in terms of nurse scheduling at least, everyone just declares shift values within the search space of {1,4} lets say for shift 1,2,3,4....</p>
  
  <pre><code>solver = pywrapcp.Solver("schedule_shifts")
  
    num_nurses = 4
    num_shifts = 4     # Nurse assigned to shift 0 means not working that day.
    num_days = 7
    # [START]
    # Create shift variables.
    shifts = {}
  
    for j in range(num_nurses):
      for i in range(num_days):
        shifts[(j, i)] = solver.IntVar(0, num_shifts - 1, "shifts(%i,%i)" % (j, i))
    shifts_flat = [shifts[(j, i)] for j in range(num_nurses) for i in range(num_days)]
  
    # Create nurse variables.
    nurses = {}
  
    for j in range(num_shifts):
      for i in range(num_days):
        nurses[(j, i)] = solver.IntVar(0, num_nurses - 1, "shift%d day%d" % (j,i))
  </code></pre>
  
  <p>I want to avoid the use of range of values when I call <code>solver.IntVar(lowerbound, upperbound, ...)</code></p>
  
  <p>I want <code>IntSolver([available values that you can choose], ...)</code></p>
  
  <p>I created a matrix of all shifts as the columns flowing from the first day to last. My row indexes don't matter but in each day/shift column, I have the index values of nurses in ranked descending order of who bid the highest for that shift. I want to create then a constraint where if I choose a nurse, I choose the maximum bid that is allowed via other constraints from the column, however I don't know how to do that given the limited documentation ortools has with python <code>IntVar</code>.</p>