#include<stdio.h>
#include<string.h>
#include<malloc.h>
void work() {
int n,max,maxpos,x,i;
scanf("%d",&n);
int *arr=(int*) malloc(sizeof(int)*2005);
memset(arr,0,2005);
max=maxpos=0;
for(i=0;i<n;i++)
{
scanf("%d",&x);
arr[x+1000]++;
if(arr[x+1000]>max)
{
max=arr[x+1000];
maxpos=x;
}
}
if(max>n/2)
printf("YES %d\n",maxpos,max);
else
printf("NO\n");
}
int main() {
int t;
scanf("%d",&t);
while(t--)
work();
return 0;
}
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