题解 | #称砝码#
称砝码
https://www.nowcoder.com/practice/f9a4c19050fc477e9e27eb75f3bfd49c
Inspired by the top c++ answer.
Use set to get the results
n = int(input())
m = list(map(int, input().split()))
x = list(map(int, input().split()))
weights = []
res = set()
res.add(0)
for i in range(n):
weights += [m[i]] * x[i]
for elm in weights:
for j in list(res):
res.add(elm+j)
print(len(res))
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