344. Reverse String (转置字符串)
Write a function that takes a string as input and returns the string reversed.
Example:
Given s = “hello”, return “olleh”.
public class Solution {
public String reverseString(String s) {
StringBuilder sb = new StringBuilder();
for(int i=s.length()-1;i>=0;i--){
sb.append(s.charAt(i));
}
return sb.toString();
}
}
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