leetcode 344. Reverse String
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"]
class Solution {
public void reverseString(char[] s) {
int i = 0;
while(s.length -1 - i - i >=1 && i < s.length - 1){
char temp = s;
s = s;
s = temp;
i++;
}
}
}
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