Codeforces Community, i need some help with problem.

Revision en1, by fractal, 2020-12-02 12:51:22

Hello, about 4 months ago i tried to solve 678F - Lena and Queries using LI Chao tree and trick to delete lines from it(trick), but got WA9. After that i stopped trying to solve it. But today i started from the very beginning and still it is WA9. Here is my last submission: 100175660. Can you help me?

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  Rev. Lang. By When Δ Comment
en3 English fractal 2020-12-02 14:29:13 8
en2 English fractal 2020-12-02 14:22:05 763
en1 English fractal 2020-12-02 12:51:22 426 Initial revision (published)