#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int k,n,m,max=0,a[10001]={0},x; cin>>k; for(int i=1;i<=k;i++){ for(int j=1;j<=10000;j++) a[j]=0; cin>>n; for(int j=1;j<=n;j++){ cin>>x; a[x]++; } max=0; for(int j=1;j<=10000;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(n%2!=0){ if(max<=(n/2+1)) cout<<"Y"<<endl; else cout<<"N"<<endl; } } return 0; }