哪个大佬能帮帮我啊

我用的是python

这是代码

n = int(input())
ls = list(map(int, input().split()))
count = 0
def pd(n):
    global count
    #global ls
    if ls[n - 1] > ls[n] and ls[n + 1] > ls[n]:
        if ls[n - 1] == ls[n]:
            pd(n - 1)
        if ls[n + 1] == ls[n]:
            pd(n + 1)
        count += 1
       
for i in range(n):
    pd(i)
print(count)

帮我看看吧