【一天一道LeetCode】#344. Reverse String

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（一）题目

Write a function that takes a string as input and returns the string reversed.

Example:

Given s = “hello”, return “olleh”.

（二）解题

题目大意：给定一个链表，将其反转输出。

解题思路：从尾到头，依次叠加到新string。

class Solution {
public:
    string reverseString(string s) {
        int len = s.length();
        string ret;
        for(int i = len-1; i>=0;i--){
            ret+=s[i];
        }
        return ret;
    }
};
时间： 2024-11-08 17:07:44

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