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