Question: Convert the following function into a tail-recursive function: (Hint: you may define a nested helper function.) def sz(s): if s: return 1 + sz(s[1:]) else:

Convert the following function into a tail-recursive function: (Hint: you may

Convert the following function into a tail-recursive function: (Hint: you may define a nested helper function.) def sz(s): if s: return 1 + sz(s[1:]) else: return 0

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