用python写一个双调序列

可以，这里是用Python实现的双调序列代码：

def bitonic_sequence(arr):
    n = len(arr)
    inc = [0] * n
    dec = [0] * n
 
    inc[0] = arr[0]
    for i in range(1, n):
        inc[i] = min(inc[i-1], arr[i])
 
    dec[n-1] = arr[n-1]
    for i in range(n-2, -1, -1):
        dec[i] = max(dec[i+1], arr[i])
 
    bitonic = [0] * n
    for i in range(n):
        bitonic[i] = max(inc[i], dec[i])
 
    return bitonic

arr = [1, 3, 5, 4, 7, 9, 6, 8, 2, 0]
print(bitonic_sequence(arr))

这是一个基本的双调序列代码实现，可以返回一个给定序列的双调序列。