python 代码

n = int(input())
a = [0] + list(map(int,input().split()))
s = [1] * (n + 1)
po = 0
ne = 0
ansp = 0
ansn = 0
for i in range(1,n + 1):
    if a[i] < 0:
        a[i] = -1
    else:
        a[i] = 1
    s[i] = s[i - 1] * a[i]
for i in range(n + 1):
    if s[i] > 0:
        ansp = ansp + po
        ansn = ansn + ne
        po = po + 1
    else:
        ansp = ansp + ne
        ansn = ansn + po
        ne = ne + 1
print(ansn,ansp)