ABC139 C - Lower を解いた

もっと上手な書き方はあると思う。

Lower.py

N = int(input())
H = list(map(int,input().split()))
 
ref = H[0]
cnt = 0
ans = 0
for i in range(1,N):
    if H[i] <= ref:
        cnt += 1
        ref = H[i]
        ans = max(ans, cnt)
    else:
        ref = H[i]
        ans = max(ans, cnt)
        cnt = 0
 
print(ans)