yy142857's blog

By yy142857, 20 months ago, In English

It's on tomorrow and the day after.

Most of you may be like me,this is the most important OI contest.

Good luck for everyone!

In Chinese,RP++!

Tips:If you are interested in the problems,see here later.(not available now for sure)

T1 T2 T3 T4 T5 T6

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