题解 | 数组计数维护

t = int(input())

for i in range(t):
    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 = s + a[j]
        elif a[j] == 0 and s >= 1:
            s = s - 1
            cnt = cnt + 1
        else:
            s = s
            cnt = cnt
    print(cnt)