ridge.py 文件源码

def count(n):
    a = [(n>>i) & 1 for i in range(8)]
    if sum(a)<=1:return False
    if a[1] & a[3] & a[5] & a[7]:return False
    a = np.array([[a[0],a[1],a[2]],
                  [a[7],  0 ,a[3]],
                  [a[6],a[5],a[4]]])
    n = label(a, strc)[1]
    return n<2