题解 | 数组计数维护

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