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yy142857's blog

By yy142857, 4 years 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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