判断n是否模2为0即可。

#include<bits/stdc++.h>
#define int long long
#define double long double
#define x first
#define y second
using namespace std;
typedef long long LL;
typedef long long ll;
typedef pair<int, int> PII;
const int N = 3e5 + 10;
const int M = 1e3 + 10;
int mod = 1e9 + 7;
int a[N];
int cal(string s) {
    int ans = 0;
    for (int i = 0; i < s.size(); i++) ans = ans * 10 + s[i] - '0';
    return ans;
}

void solve() {
    int n;
    cin >> n;
    if (n % 2 == 0) cout << "YES\n";
    else cout << "NO\n";
}

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(0), cout.tie(0);
    int _;
    _ = 1;
    cin >> _;
    while (_--) {
        solve();
    }
}