题解 | #挑7#
挑7
http://www.nowcoder.com/practice/ba241b85371c409ea01ac0aa1a8d957b
吐槽就算了，并没说是否包含n 占用内存有点高，运算速度也不快，不知道大神们都是怎么实现的
n = int(input())
data_list = [str(i) for i in range(1,n+1)]
seven = len([x for x in data_list if "7" in x])
left_list = [int(x) for x in data_list if "7" not in x]
print(len([x for x in left_list if x % 7 == 0]) + seven)
，慢慢来，24届老学长离职两个月，被拷打了30多次了