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[CF708E]Student's Camp | K-D Space #34

Open EndSaH opened 4 years ago

EndSaH commented 4 years ago

https://endsah.tk/blog/CF708E-Student-s-Camp/#more

Description $$1 \le n, m \le 1500, 1 \le k \le 10 ^5$$ 答案对 $10 ^9 + 7$ 取模。