#include<iostream>
#include<bits/stdc++.h>
using namespace std;
int T,n,temp;
int service[1001][100001] ;
int s[1001];
int main(int argc, char** argv)
{
ios::sync_with_stdio(0);
cin.tie(0);
cin >> T;
for(int j = 0; j < T;j++){
cin >> n;
for(int i = 0; i < n ; i++){
cin >> temp;
service[j][i] = temp;
}
s[j] = n;
sort(service[j],service[j]+n);
}
for(int j = 0; j < T;j++){
int answer = 0;
int l = 0;
int r = s[j]-1;
int sum = 0;
while ( l < r ){
if(service[j][r] > 900){
r --;
continue;
}
if(sum + service[j][l] + service[j][r] > 900){
sum = 0;
r--;
answer += 1;
}
else if(sum + service[j][l] + service[j][r] == 900){
r --;
l ++;
sum = 0;
answer += 1;
}
else if(sum + service[j][l] + service[j][r] < 900){
sum += service[j][l];
l++;
}
}
if(l == r){
answer += 1;
}
printf("%d\n",answer);
}
return 0;
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