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随机密码生成
描述
补充编程模板中代码,完成如下功能:
以整数17为随机数种子,获取用户输入整数N为长度,产生3个长度为N位的密码,密码的每位是一个数字。每个密码单独一行输出。
产生密码采用random.randint()函数。
输入输出示例
题解
import random
def genpwd(length):
a = 10**(length-1) #用length表示出.randint的随机范围
b = 10**length - 1
return "{}".format(random.randint(a, b))
length = eval(input())
random.seed(17)
for i in range(3):
print(genpwd(length))
连续质数计算
描述
补充编程模板中代码,完成如下功能:
获得用户输入数字N,计算并输出从N开始的5个质数,单行输出,质数间用逗号,分割。
注意:需要考虑用户输入的数字N可能是浮点数,应对输入取整数;最后一个输出后不用逗号。
输入输出示例
输入
输出
12
13,17,19,23,29
题解
def prime(m):
for i in range(2,m):
if m % i == 0:
return False
return True
n = eval(input())
n_ = int(n)
n_ = n_+1 if n_ < n else n_
count = 5
while count > 0:
if prime(n_):
if count > 1:
print(n_, end=",")
else:
print(n_, end="")
count -= 1
n_ += 1