白话笔记——swap

用法——反转数组

void reverse(vector<int>& nums, int start, int end) {
        while (start < end) {
            swap(nums[start], nums[end]);
            start += 1;
            end -= 1;
        }
    }

作者：LeetCode-Solution
链接：https://leetcode.cn/problems/rotate-array/solution/xuan-zhuan-shu-zu-by-leetcode-solution-nipk/

反转字符串

 void reverseString(vector<char>& s) {
        for(int i = 0, j = s.size() - 1; i < j; i++, j--)
            swap(s[i] = s[j]);
    }
    return；
————————————————
原文链接：https://blog.youkuaiyun.com/snowcatvia/article/details/96629778