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Given a string and an integer k, you need to reverse the first k characters for every 2k
characters counting from the start of the string. If there are less 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 left the other as original.
Example:
Input: s = "abcdefg", k = 2
Output: "bacdfeg"
Restrictions:
- The string consists of lower English letters only.
- Length of the given string and k will in the range [1, 10000]
Difficulty:
Easy
Lock:
Normal
All contents and pictures on this website come from the Internet and are updated regularly every week. They are for personal study and research only, and should not be used for commercial purposes. Thank you for your cooperation.