recursive list processing

例句：

1. 1. The algorithm is designed to be recursive, allowing for easy modification.
   这个算法被设计成递归的，便于修改。
2. 2. The process of checking the listfor errors is iterative, requiringcareful attention to detail.
   检查列表中错误的过程是迭代的，需要仔细注意细节。
3. 3. The program uses a recursive approach to solve complex problems efficiently.
   该程序采用递归方法高效地解决复杂问题。