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Computer Science Introduction to Algorithms Algorithms in Code Recap: Algorithms in Code

Kareem Jeiroudi
Kareem Jeiroudi
14,983 Points

There's an error in the recursion implementation code

I believe, I've spotted an error in this code, where in the scope of the last if-else statements the function binary_search_recursive(args) is being called instead of recursive_binary_search(args). I hope you fix this soon.

# see the function's name!
def recursive_binary_search(list, target, start=0, end=None):
    if end is None:
        end = len(list) - 1
    if start > end:
        return -1

    mid = (start + end) // 2

    if target == list[mid]:
        return mid
    else:
        if target < list[mid]:
            # see the function called!
            return binary_search_recursive(list, target, start, mid-1)
        else:
            return binary_search_recursive(list, target, mid+1, end)

1 Answer