题解 | #网购#
网购
http://www.nowcoder.com/practice/5d7dfd405e5f4e4fbfdff6862c46b751
buy = input().split(" ")
if buy[1]=='11':
if buy[3]=='0':
use_money = float(buy[0])*0.7
print("%.2f" %use_money)
elif buy[3]=='1':
use_money = float(buy[0])*0.7 -50.0
if use_money>=0.00:
print("%.2f" %use_money)
else:
print("0.00")
elif buy[1]=='12':
if buy[3]=='0':
use_money = float(buy[0])*0.8
print("%.2f" %use_money)
elif buy[3]=='1':
use_money = float(buy[0])*0.8 - 50.0
if use_money>=0.00:
print("%.2f" %use_money)
else:
print("0.00")
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