B. I'll call him Hanya

with open("hanya.in") as fd:
    n = int(fd.readline())
    for i in range(n):
        x = int(fd.readline())
        alist = fd.readline().split()
        num = []
        for j in alist:
            num.append(int(j))
        mini = 1
        mini = min(num)
        maxi = -1
        maxi = max(num)
        ans = 0
        if(maxi>0):
            ans = ans +1
        if mini<0:
            ans = ans +1
        print(ans)