T=int(input())

for _ in range(T):
    n,k=map(int,input().split())
    input_list=list(map(int,input().split()))

    S=cnt=0
    for i in input_list:
        if i >= k:
            S+=i
        if i ==0 and S>=1:
            S-=1
            cnt+=1

    print(cnt)