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