长期生产决策

def solve(____):
    fc, a, b = cost_func
    tc = fc + a * output + b * output ** ____
    ac = tc / output
    tr = price * output
    profit = tr - tc
    if price >= ac:
        decision = "____"
    else:
        decision = "____"
    return {"____": price, "____": round(____), "____": round(____), "____": decision}