#include<iostream> #include<cstdio> using namespace std; int main(){ int k,n,a[10001]={0},max=0,x; cin>>k; for(int i=1;i<=k;i++){ cin>>n; for(int j=1;j<=10000;j++) a[j]=0; max=0; for(int j=1;j<=n;j++){ cin>>x; a[x]++; } for(int j=1;j<=n;j++){ if(a[j]>max&&a[j]>0) max=a[j]; } if(n%2==0){ if(max<=n/2) cout<<"Y"<<endl; else cout<<"N"<<endl; } else{ if(max<=n/2+1) cout<<"Y"<<endl; else cout<<"N"<<endl; } } return 0; }