1792A - GamingForces - CodeForces Solution

#include <bits/stdc++.h>
using namespace std;
#define ll long long int
void solve()
{
    int n;
    cin>>n;
    vector<int>v(n);
    int cnt=0;
    for(int i=0; i<n; i++)
    {
        cin>>v[i];
        if(v[i]==1){
            cnt++;
        }
    }
    int ans=min(n,n-cnt/2);
    cout<<ans<<endl;
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    ll t = 1;
    cin >> t;
    while (t--)
    {
        solve();
    }
}