实测使用快读后时间降低为23%
by ABCgfed @ 2023-11-27 21:50:22
@[ABCgfed](/user/764239)
不需要快速读
下面这个代码就是AC代码
```cpp
#include<bits/stdc++.h>
using namespace std;
int n,a,s;
int main(){
scanf("%d",&n);
for(int w=1;w<=n;w++)
scanf("%d",&a),s^=a;
printf("%d",s);
return 0;
}
```
by Liyunze123 @ 2023-12-02 09:34:27
xiexie
by zhupengyun @ 2024-02-17 09:54:21