541. Reverse String II

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Given a string s and an integer k, reverse the first k characters for every 2k characters counting from the start of the string. If there are fewer than k characters left, reverse all of them. If there are less than 2k but greater than or equal to k characters, then reverse the first k characters and leave the other as original. Example 1: Input: s = "abcdefg", k = 2 Output: "bacdfeg" Exampl

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solution.cppC++17

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