python 代码

n = int(input())
b = []
for i in range(n):
    a = int(input())
    b.append(a)
res = 0
for i in range(n):
    j = 0
    last = -1
    cnt = 1
    while j < n:
        if b[j] != b[i]:
            if b[j] == last:
                cnt = cnt + 1
            else:
                last = b[j]
                cnt = 1
        j = j + 1
        res = max(cnt,res)
print(res)