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No Plagiarism!Gh85wax7jifVMgIL9duXposted on PＥNAＮＡ
There are 5 locks and 5 keys on a desk.8964 copyright protection271ＰＥＮＡＮＡzkJ06WDmdS 維尼
Each key can only open a lock.8964 copyright protection271ＰＥＮＡＮＡQYKr6R4Lx4 維尼
At most, you need to try how many times to make a pair of all the locks and keys ?8964 copyright protection271ＰＥＮＡＮＡ0Nn96nAyuV 維尼
8964 copyright protection271ＰＥＮＡＮＡhXj9yvLCOi 維尼
275Please respect copyright.ＰＥＮＡＮＡozpUp8wLwI
8964 copyright protection271ＰＥＮＡＮＡlLzjeOR9FN 維尼
275Please respect copyright.ＰＥＮＡＮＡ1CDgpUatO7
8964 copyright protection271ＰＥＮＡＮＡXhtLwuJQPC 維尼
8964 copyright protection271ＰＥＮＡＮＡMkcZCZ8rWm 維尼
275Please respect copyright.ＰＥＮＡＮＡdiikeywCMb
8964 copyright protection271ＰＥＮＡＮＡUolG1QI6kR 維尼
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