3794. Reverse String Prefix

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You are given a string s and an integer k. Reverse the first k characters of s and return the resulting string. Example 1: Input: s = "abcd", k = 2 Output: "bacd" Explanation: The first k = 2 characters "ab" are reversed to "ba". The final resulting string is "bacd". Example 2: Input: s = "xyz", k = 3 Output: "zyx" Explanation: The first k = 3 characters "xyz" are reversed to "

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solution.cppC++17

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