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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