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Call your reversal function reverse().

If you have an empty string, return the empty string (this is the condition for ending recursion). You can also end the recursion when your string has a length of a single character (return the single character), but you must still account for the possibility of empty strings.

Otherwise, separate the string into two parts: for example, the first letter, and the remaining string (see Note 1). Return the reverse() of the second part, joined to the reverse() of the first part.

For example, if your string is "abc", your function would have to return reverse("bc") + reverse("a"). reverse("bc") will, in turn, result in reverse("c") + reverse("b"), so the result will be "cba".

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โˆ™ 2010-11-01 11:40:26
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Q: What is the algorithm for reverse a given number recursively?
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