#include<bits/stdc++.h>
#define ll long long
#define ull unsigned long long
#define uint unsigned int
#define ldb long double
#define pii pair<int,int>
#define mkp make_pair
#define mkt make_tuple
#define fr first
#define se second
#define uset unordered_set
#define umap unordered_map
#define pqueue priority_queue
#define all(_box) _box.begin(),_box.end()
#define ppc __builtin_popcount
#define ctz __builtin_ctz
#define clz __builtin_clz
#define lbd lower_bound
#define ubd upper_bound
#define deb(x) cerr<<#x<<'='<<(x)<<' '
using namespace std;

bool solve(){
    int n;
    cin>>n;
    map<int,int>mp;

    for(int i=1;i<=n;i++){
        int x;
        cin>>x;
        mp[x]++;
    }
    
    if(n-mp[1]<=2)return 1;
    return mp.size()-1<=1;
}
int main(){
    ios::sync_with_stdio(0);
    cin.tie(0),cout.tie(0);

    int T;
    cin>>T;
    while(T--){
        if(!solve())cout<<"Yes\n";
        else cout<<"No\n";
    }
}