数组与指针
数组和指针好难啊！今天在牛客网刷了一道数组题，调试了好久才通过。指针的概念还是有点模糊，看来得再多看看书和视频了。
#include <iostream>
using namespace std;
void Swap(int &x, int &y);
int main() {
int a, b;
cin >> a >> b;
Swap(a, b);
cout << a << " " << b <<endl;
return 0;
}
void Swap(int &x, int &y) {
int temp;
temp = x;
x = y;
y = temp;
}