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| # 用list抓會好嗎 分次計算 if in & not in -> how about -
# 我記得可以delete list中的東西 我們檢測到<0就從list刪掉 -> .remove()
from sys import stdin
def fun(person): #here ass, bss += 每次用完看有幾一次for取min
global ans
ai = 0
bi = 0
for item in person:
if item == a:
ai += 1
if item == b:
bi += 1
if item == -a:
ai -= 1
if item == -b:
bi -= 1
if min(ai, bi) > 0:
ans += 1
#a, b = 3, 9
#n = 2
#list1 = [[1, 8, 0], [5, 6, 0], [2, 7, 0], [8, 1, 0], [33, 22, 0]]
#list1 = [[3, 12, 9, -3, 3, 9, 0], [17, 3, 25, 3, -3, -3, 9, 0]]
a, b = map(int, stdin.readline().split())
n = int(stdin.readline())
list1 = []
for i in range(n):
list1.append(list(map(int, stdin.readline().split())))
ans = 0
for i in list1:
fun(i)
print(ans)
|