题解 | #中彩票的的概率#
中彩票的的概率
https://www.nowcoder.com/practice/531e409e1b564cfbbb275c6a8d3a4b45
can_buy = list(input().split())
gailv = list(input().split())
caipiao = dict(zip(can_buy,gailv))
buy = list(input().split())
result = 0
for i in buy :
if result == 0 :
result = 1 * float(caipiao[i])
else :
result = result * float(caipiao[i])
print(round(result,3))
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