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v1.6.3
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Published: May 30, 2020
License: MIT
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README
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Write a function that reverses a string. The input string is given as an array of characters char[]
.
Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra memory.
You may assume all the characters consist of printable ascii characters.
Example 1:
Input: ["h","e","l","l","o"]
Output: ["o","l","l","e","h"]
Example 2:
Input: ["H","a","n","n","a","h"]
Output: ["h","a","n","n","a","H"]
[Two Pointers]
[String]
Similar Questions
- Reverse Vowels of a String (Easy)
- Reverse String II (Easy)
Hints
Hint 1
The entire logic for reversing a string is based on using the opposite directional two-pointer approach!
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