#include <bits/stdc++.h>
using namespace std;
int main(void){
    int t;
    cin>>t;
    while(t--){
        int n;
cin>>n;
int zero=0;
for(int i=0;i<n;i++){
int t;
cin>>t;
zero+=(t==0);
}
if(zero>1||(zero==1&&n%2==0)){
cout<<"No"<<endl;
}else{
cout<<"Yes"<<endl;
}
    }
return 0;
    }