题解 | #中彩票的的概率#
中彩票的的概率
https://www.nowcoder.com/practice/531e409e1b564cfbbb275c6a8d3a4b45
num_all = input().split()
ratio = input().split()
niu = input().split()
dt1 = {}
j = 0
for i in num_all:
dt1[i] = ratio[j]
j += 1
mult = []
for i in niu:
mult.append(dt1[i])
# print(mult)
result = float(mult[0])*float(mult[1])*float(mult[2])
print('%.3f' %result)
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