C20250064

UID: 61, Registered at 2022-9-6 10:54:10, last login at 2025-5-29 21:42:58, last active at 2025-5-31 13:58:58.

Solved 170 problems, RP: 222.27 (No. 69)

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OI(2020.8-2023.3)

$$\Huge \mathrm{1}\overset{\Large i}{\to}\mathbb{V}_\text{\Large F}\overset{\Large \partial}{\to}\mathbb{V}_\text{\Large E}\overset{\Large \partial}{\to}\mathbb{V}_\text{\Large V} \overset{\Large +}{\to}\mathbb{R}\overset{\Large i}{\to}\mathrm{1} $$
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