题解 | 数组计数维护

z = int(input())
for i in range(z):
    n,k=map(int,input().split())
    a=list(map(int,input().split()))
    S=cnt=0
    for j in range(n):
        if a[j]>=k:
            S+=a[j]
        if a[j]==0 and S>=1:
            S-=1
            cnt+=1
    print(cnt)