1 #include <cstdio>
 2 
 3 int main()
 4 {
 5     int t,n;
 6     unsigned long long m;
 7     scanf("%d",&t);
 8     while(t--){
 9         scanf("%d",&n);
10         unsigned long long sum = 0,maxn = 0;
11         while(n--){
12             scanf("%I64d",&m);
13             if(m>maxn)
14                 maxn = m;
15             sum += m;
16         }
17         printf(sum-maxn >= maxn-1 ? "Yes\n" : "No\n");
18     }
19     return 0;
20 }