/***
Md. Nazmul Hasan
Shahjalal University of Science & Technology,Sylhet.
hasan08sust@gmail.com
***/
#include<iostream>
#include<cstdio>
#include<stack>
#include<queue>
#include<map>
#include<vector>
#include<algorithm>
#include<cstring>
#include<sstream>
#include<cmath>
#include <iomanip>
using namespace std ;
typedef long long ll ;
typedef int in ;
typedef unsigned long long ull ;
const double pi = 2*acos(0) ;
#define maxi 40000
#define pf printf
#define sc scanf
#define pb push_back
#define MEM(x,y) (memset((x),(y),sizeof(x)))
#define MIN(x,y) ((x) < (y) ? (x) : (y))
#define MAX(x,y) ((x) > (y) ? (x) : (y))
#define load(array,size) for(int i=0 ; i<size ; i++) cin>>array[i] ;
#define new_line pf("\n")
#define clear_data(array) memset(array,0,sizeof(array))
#define highest_int 2147483647
int main()
{
int test,p;
vector<int> data;
map<int,int>my_map ;
sc("%d",&test);
while(test--){
int n;
sc("%d",&n);
for(int i=0 ; i<n ; i++){
sc("%d",&p);
if(p<0){
p = p*(-1);
my_map[p] =-1;
}else{
my_map[p] =1;
}
data.pb(p);
}
sort(data.begin(),data.end());
int l= -1;
int cnt =0;
for(int i=0 ; i<data.size() ; i++){
p = data[i];
if(l == -1){
if(my_map[p] == -1){
l=0; // negative
}else{
l =1 ; // positive
}
cnt++;
continue;
}
if(my_map[p] == -1){
if(l==1){
cnt++;
l=0;
}else if(l==0){
continue;
}
}else if(my_map[p] == 1){
if(l==1){
continue;
}else if(l==0){
cnt++;
l=1;
}
}
}
pf("%d\n",cnt);
data.clear();
my_map.clear();
}
return 0;
}
Md. Nazmul Hasan
Shahjalal University of Science & Technology,Sylhet.
hasan08sust@gmail.com
***/
#include<iostream>
#include<cstdio>
#include<stack>
#include<queue>
#include<map>
#include<vector>
#include<algorithm>
#include<cstring>
#include<sstream>
#include<cmath>
#include <iomanip>
using namespace std ;
typedef long long ll ;
typedef int in ;
typedef unsigned long long ull ;
const double pi = 2*acos(0) ;
#define maxi 40000
#define pf printf
#define sc scanf
#define pb push_back
#define MEM(x,y) (memset((x),(y),sizeof(x)))
#define MIN(x,y) ((x) < (y) ? (x) : (y))
#define MAX(x,y) ((x) > (y) ? (x) : (y))
#define load(array,size) for(int i=0 ; i<size ; i++) cin>>array[i] ;
#define new_line pf("\n")
#define clear_data(array) memset(array,0,sizeof(array))
#define highest_int 2147483647
int main()
{
int test,p;
vector<int> data;
map<int,int>my_map ;
sc("%d",&test);
while(test--){
int n;
sc("%d",&n);
for(int i=0 ; i<n ; i++){
sc("%d",&p);
if(p<0){
p = p*(-1);
my_map[p] =-1;
}else{
my_map[p] =1;
}
data.pb(p);
}
sort(data.begin(),data.end());
int l= -1;
int cnt =0;
for(int i=0 ; i<data.size() ; i++){
p = data[i];
if(l == -1){
if(my_map[p] == -1){
l=0; // negative
}else{
l =1 ; // positive
}
cnt++;
continue;
}
if(my_map[p] == -1){
if(l==1){
cnt++;
l=0;
}else if(l==0){
continue;
}
}else if(my_map[p] == 1){
if(l==1){
continue;
}else if(l==0){
cnt++;
l=1;
}
}
}
pf("%d\n",cnt);
data.clear();
my_map.clear();
}
return 0;
}
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