t=int(input())
def judge(x):
  s=0
  for i in a:
    s+=min(i,x)
  return x*2<=s
for _ in range(t):
  n=int(input())
  a=[*map(int,input().split())]
  ok,ng=0,1<<60
  while abs(ok-ng)>1:
    mid=ok+ng>>1
    if judge(mid):
      ok=mid
    else:
      ng=mid
  ans=f=0
  for i in a:
    ans+=min(i,ok)
    if i>ok:
      f=1
  print(ans+f)