ID Problem Show tags Hide tags AC / Tried Difficulty
28480 28480   C. 边走边种 6 / 51 9
28481 28481   D. 监视奶牛 37 / 195 8
28482 28482   E. 求面积1.0 4 / 66 9
28483 28483   F. 求面积 27 / 42 2
28484 28484   G. 镜面翻转 6 / 37 8

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