541: Solution with step by step explanation
Intuition\n Describe your first thoughts on how to solve this problem. \n\n# Approach\n1. Convert the input string s into a list of characters.\n2. Iterate over
# Intuition\n<!-- Describe your first thoughts on how to solve this problem. -->\n\n# Approach\n1. Convert the input string s into a list of characters.\n2. Iterate over the list of characters by stepping by 2k. For each substring of length k within the current 2k-length segment, reverse the characters in that substring.\n3. Convert the list of characters back into a string and return it.\n# Complexity\n- Time complexity:\nO(n)\n\n- Space complexity:\nO(n)\n\n# Code\n```\nclass Solution:\n    def reverseStr(self, s: str, k: int) -> str:\n        # Convert the string to a list of characters\n        lst = list(s)\n        \n        # Reverse substrings of length k every 2k characters\n        for i in range(0, len(lst), 2*k):\n            lst[i:i+k] = reversed(lst[i:i+k])\n        \n        # Convert the list back to a string and return it\n        return "".join(lst)\n\n```
['Two Pointers', 'String', 'Python', 'Python3']