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666又被可恶的杭电做局了 阅读全文
posted @ 2026-06-05 00:14
ALPHA_wule
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题目: When FJ's friends visit him on the farm, he likes to show them around. His farm comprises \(N (1 \le N \le 1000)\) fields numbered $ 1..N $, the f 阅读全文