#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define INF 0x7fffffff
map<int,int>mp;
int c[100100];
int main()
{
    std::ios::sync_with_stdio(false);
    int  t,n,sum,h;
    cin>>t;
    while(t--)
    {
        mp.clear();
        sum=1;
        cin>>n;
        for(int i=0;i<n;i++)
        {
           cin>>c[i];
           mp[c[i]]++;
            if(mp[c[i]]>=2)
            {
              mp.clear();
             mp[c[i]]=1;
            sum++;
            }
        }
        cout<<sum<<endl;
    }
    return 0;
}