题解 | #挑7#
挑7
https://www.nowcoder.com/practice/ba241b85371c409ea01ac0aa1a8d957b
n=int(input())
count=0
for i in range(1,n+1):
if '7' in str(i) or i%7==0:
count+=1
print(count)
挑7
https://www.nowcoder.com/practice/ba241b85371c409ea01ac0aa1a8d957b
n=int(input())
count=0
for i in range(1,n+1):
if '7' in str(i) or i%7==0:
count+=1
print(count)
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