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ID Problem Show tags Hide tags AC / Tried Difficulty
1538 NOIPJ2017A   [NOIP2017 普及组] 成绩 16 / 17 4
660 660   买铅笔 4 / 6 10
661 661   龙虎斗 23 / 174 8
667 667   金币 7 / 9 9
704 704   买铅笔 30 / 43 1
711 711   金币 36 / 40 1
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