```cpp
#include <iostream>
#include <cstdio>
using namespace std;
int main(){
int t,n,num;
cin>>t;
int a[10001];
while(t--){
cin>>n;
for(int i=1;i<=n;i++){
cin>>a[i];
if(i==1){
num=a[1];
continue;
}
num^=a[i];
}
if(num==0) cout<<"No"<<endl;
else cout<<"Yes"<<endl;
}
return 0;
}
```
@[ZhangMY123456](/user/1000377) ,输出大小写
by rnfmabj5114 @ 2023-08-17 09:32:11
@[rnfmabj5114](/user/917683)
6，我心态都快让它搞炸了QAQ！
by Chun_My @ 2023-08-17 09:36:28