题解 | #牛牛的绩点#
牛牛的绩点
https://www.nowcoder.com/practice/de8bc3e736164786b07a4dd64ed172f7
weight_table = {
'A': 4,
'B': 3,
'C': 2,
'D': 1,
'F': 0,
}
weighted_score = 0
raw_score = 0
# the interesting part of this Question is to take 2 input one by one.
while True:
weight = input()
if weight == 'False':
break
else:
score = int(input())
weighted_score += weight_table[weight] * score
raw_score += score
res = '{:.2f}'.format(weighted_score/raw_score)
print(res)
