Can I use recursion for permutations?

Can I use recursion to generate permutations of a list?

Yes, recursion is a common technique to generate permutations. Would you like a code example?

Yes, please! Can you show me how to do it in Python?

Sure! Here's a simple recursive function in Python to generate permutations:

def permute(nums):
    if len(nums) == 0:
        return []
    if len(nums) == 1:
        return [nums]
    perms = []
    for i in range(len(nums)):
        current = nums[i]
        remaining = nums[:i] + nums[i+1:]
        for p in permute(remaining):
            perms.append([current] + p)
    return perms

That looks great! How does this function work?

The function works by selecting each element and recursively generating permutations of the remaining elements, combining them to form complete permutations.