题解 | #挑7#
挑7
https://www.nowcoder.com/practice/ba241b85371c409ea01ac0aa1a8d957b?tpId=37&tqId=21278&rp=1&ru=/exam/oj/ta&qru=/exam/oj/ta&sourceUrl=%2Fexam%2Foj%2Fta%3Fpage%3D2%26tpId%3D37%26type%3D37&difficulty=undefined&judgeStatus=undefined&tags=&title=
import sys
'''
先将s转化为字符串，然后遍历字符串
'''
s =int(input())
def select7(s):
'''
当7在i中，或者i能被7整除，将i添加到L中
'''
i=1
L=[]
while i <= s:
if "7" in str(i) or i%7==0 :
L.append(i)
else:
pass
i+=1
print(len(L))
return 0
#调用select7函数
select7(s)
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