如何使用简单的运算符代替数组、映射或其他函数来确定一个数字列表是递增的、递减的还是无序的？

def check_order(nums):
    is_increasing = True
    is_decreasing = True

    for i in range(1, len(nums)):
        if nums[i] > nums[i-1]:
            is_decreasing = False
        elif nums[i] < nums[i-1]:
            is_increasing = False
    
    if is_increasing:
        return "递增列表"
    elif is_decreasing:
        return "递减列表"
    else:
        return "无序列表"

nums = [1, 2, 3, 4, 5]
print(check_order(nums))  # 输出：递增列表

nums = [5, 4, 3, 2, 1]
print(check_order(nums))  # 输出：递减列表

nums = [1, 3, 2, 5, 4]
print(check_order(nums))  # 输出：无序列表