【Leetcode】Reverse String
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题目链接:https://leetcode.com/problems/reverse-string/
题目:
Write a function that takes a string as input and returns the string reversed.
Example:
Given s = "hello", return "olleh".
思路:
easy
算法:
public String reverseString(String s) { char ss[] = s.toCharArray(); for (int i = 0; i < ss.length / 2; i++) { char tmp = ss[i]; ss[i] = ss[ss.length - 1 - i]; ss[ss.length - 1 - i] = tmp; } return new String(ss); }
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