一种细菌的繁殖速度是每天成倍增长。例如,第一天有10个,第二天就变成20个,第三天变成40个。输入繁殖天数,输出细菌总量。
n=(input("请输入繁殖天数:"))
s=10 #细菌个数初值
s=10*2**()
print("细菌总量为:",)
s="012345"
lst=["6","7","8","9"]
dic={"018":1,"028":2,"029":3,"039":4}
print(dic[s[:4:2]+lst[3]])
该程序运行后的输出结果为:( )
item={"竞技类":["铁人三项","电子竞技","霹雳舞"],"球类":["足球","篮球","乒乓球"],
"对抗性":["拳击","跆拳道","卡巴迪","击剑"],"水上":["跳水","龙舟","帆船"]}
print(item["对抗性"][2][::-1])
执行该程序段后,输出的结果是( )
a =int(input("请输入自然数:"))
b=int(input("请输入自然数:"))
c=int(a/b)
print( c)