题解 | #挑7#
挑7
https://www.nowcoder.com/practice/ba241b85371c409ea01ac0aa1a8d957b
#简单题目,怎么分到中等难度来了 import sys data= sys.stdin.readlines() n=int(data[0].strip("\n")) # print(n) k=0 for i in range(1,n+1): if '7' in str(i) or i%7==0: k=k+1 print(k)
挑7
https://www.nowcoder.com/practice/ba241b85371c409ea01ac0aa1a8d957b
#简单题目,怎么分到中等难度来了 import sys data= sys.stdin.readlines() n=int(data[0].strip("\n")) # print(n) k=0 for i in range(1,n+1): if '7' in str(i) or i%7==0: k=k+1 print(k)
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