题解 | #挑7#
挑7
https://www.nowcoder.com/practice/ba241b85371c409ea01ac0aa1a8d957b
n = int(input())
one2n = [i for i in range(1,n+1)]
rls7 = n//7
for i in list(map(str,one2n)):
if '7' in i and int(i)%7 != 0:
rls7 += 1
print(rls7)
挑7
https://www.nowcoder.com/practice/ba241b85371c409ea01ac0aa1a8d957b
n = int(input())
one2n = [i for i in range(1,n+1)]
rls7 = n//7
for i in list(map(str,one2n)):
if '7' in i and int(i)%7 != 0:
rls7 += 1
print(rls7)
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