水题

代码：

import java.util.*;import java.math.BigInteger;import java.math.BigDecimal;;interface forall {	static final int N = 1000005;}public class Main implements forall {	public static void main(String[] args) {		Scanner in = new Scanner(System.in);		// BigInteger [] a = new BigInteger[122];		int T;		int n;		long[] a = new long[N];		T = in.nextInt();		while ((T--) > 0) {			n = in.nextInt();			long sum = 0;			long max = 0;			for (int i = 0; i < n; ++i) {				a[i] = in.nextLong();				sum += a[i];				max = Math.max(max, a[i]);			}			if ((max - 1) <= (sum - max)) {				System.out.println("Yes");			} else {				System.out.println("No");			}		}	}}