def number():
    n, k = map(int, input().split())
    a = list(map(int, input().split()))
    s = cnt = 0
    for i in a:
        if i >= k:
            s += i
        if i == 0 and s >= 1:
            s -= 1
            cnt += 1
    return cnt


t = int(input())
for i in range(t):
    print(number())