#include<cstdio>
using namespace std;
int t,n,a[15005],id[30],nxt[15005],q;
int main(){
    freopen("bamboo.in","r",stdin);
    freopen("bamboo.out","w",stdout);
    scanf("%d",&t);
    while(t--){
        scanf("%d",&n);
        for(int i=1;i<=n;i++){
            scanf("%d",&a[i]);
        }
        scanf("%d",&q);
        for(int i=1;i<=q;i++){
            int l,r;
            scanf("%d%d",&l,&r);
            int ans=0,now=l;
            while(now<=r){
                bool flag=1;
                for(int j=now+1;j<=r;j++){
                    if(a[j]==a[now]){
                        now=j+1;
                        flag=0;
                        break;
                    }
                }
                if(flag){
                    ans++;
                    now++;
                }
            }
            printf("%d\n",ans);
        }
    }
    return 0;
}