non-recursive algorithm

• 非递归算法

non-recursive algorithm的用法和样例：

例句

1. Some algorithms are recursive in nature, trying to write non-recursive algorithms is tedious, and in the end they become recursive simulations that use stacks themselves!
   有些算法本质上是递归的，为之编写非递归算法会非常冗长，而且最终也必须使用堆栈进行递归模拟。