Reverse a String Manually | Dataford Interview Questions

How would you reverse a string without using built-in functions?

Implement the function below without using slicing, reversed(), .reverse(), or .join(). Preserve all characters, including spaces, punctuation, and repeated characters.

Input and Output

reverse_string(s) receives a string and returns a new string containing the characters of s in reverse order.

Constraints

0 <= len(s) <= 5,000
s may contain letters, digits, spaces, punctuation, and Unicode characters
The input string must not be modified

Function Signature

def reverse_string(s):

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