题解 | #称砝码#
称砝码
https://www.nowcoder.com/practice/f9a4c19050fc477e9e27eb75f3bfd49c
n = int(input())
m = list(map(int, input().strip().split(" ")))
x = list(map(int, input().strip().split(" ")))
s = set()
s.add(0)
for i in range(n):
for num in s.copy():
for j in range(x[i]):
num += m[i]
s.add(num)
print(len(s))
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