题解 | #挑7#
挑7
https://www.nowcoder.com/practice/ba241b85371c409ea01ac0aa1a8d957b
import sys
n = int(input())
li = []
for i in range(7, n+1):
if i % 7 == 0:
li.append(i)
elif str(i).count('7') > 0:
li.append(i)
print(len(li))
挑7
https://www.nowcoder.com/practice/ba241b85371c409ea01ac0aa1a8d957b
import sys
n = int(input())
li = []
for i in range(7, n+1):
if i % 7 == 0:
li.append(i)
elif str(i).count('7') > 0:
li.append(i)
print(len(li))
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