使用addmaxequality找到最大bool的总和

Question

如何使用addminequality和AddMaxequality均匀分配作业？我的模型变量是布尔值，因此我尝试最大程度地减少布尔总和和最小值之间的差异。

assignments = []
for c in cars:
    a = model.NewIntVar(0, total_assignments, c)
    model.Add(a == sum(car_sch[(d, c)] for d in days))
    assignments.append(a)

assignment_min = model.AddMinEquality(assignments)  
assignment_max = model.AddMaxEquality(assignments)

model.Minimize(assignment_max - assignment_min)

Answer 1

经过一些测试

assignments = []
for c in cars:
    a = model.NewIntVar(0, total_assignments, c)
    model.Add(a == sum(car_sch[(d, c)] for d in days))
    assignments.append(a)

min_value = model.NewIntVar(0, total_assignments, "min val") 
assignment_min = model.AddMinEquality(assignments) 
max_value = model.NewIntVar(0, total_assignments, "max val") 
assignment_max = model.AddMaxEquality(assignments)

model.Minimize(max_value - min_value)

Answer 2

请

Model.AddMinEquality(target_var, [expressions])

参见