一次多用一点

运行下面这段程序，填写它打印出来的结果。

BLK = 4

def loads(idxs):
    cur = -1
    n = 0
    for i in idxs:
        b = i // BLK
        if b != cur:
            n = n + 1
            cur = b
    return n

a = list(range(0, 32, 4))
b = list(range(32))
print(str(len(a)) + "-" + str(loads(a)) + "/"
      + str(len(b)) + "-" + str(loads(b)))