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No Plagiarism!evRItJi5ZmO0F4NeK23wposted on PＥNAＮＡ
There are 5 locks and 5 keys on a desk.8964 copyright protection211ＰＥＮＡＮＡ6uHHDJwbku 維尼
Each key can only open a lock.8964 copyright protection211ＰＥＮＡＮＡCGnJcMaB6g 維尼
At most, you need to try how many times to make a pair of all the locks and keys ?8964 copyright protection211ＰＥＮＡＮＡ4dvr91CdTi 維尼
8964 copyright protection211ＰＥＮＡＮＡis04lz4R2z 維尼
215Please respect copyright.ＰＥＮＡＮＡoOGzm9PEAm
8964 copyright protection211ＰＥＮＡＮＡGIOmK4c8qV 維尼
215Please respect copyright.ＰＥＮＡＮＡDR1ZVCKo2G
8964 copyright protection211ＰＥＮＡＮＡYoUlAtM5Uj 維尼
8964 copyright protection211ＰＥＮＡＮＡNdbsmYqkds 維尼
215Please respect copyright.ＰＥＮＡＮＡqHqOl8YnOt
8964 copyright protection211ＰＥＮＡＮＡqwAlyI4h9f 維尼
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