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【杭电】[1998]奇数阶魔方

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【杭电】[4349]Xiao Ming's Hope

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【CodeForces】[617A]Elephant

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【CodeForces】[546A]Soldier and Bananas

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【CodeForces】[1B]Spreadsheet

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【CodeForces】[1A]Theatre Square

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【杭电】[5660]jrMz and angles

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【NYOJ】[1923] 关于521

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【NYOJ】[2028]数字分隔（二）

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【NYOJ】[1798]A+B Problem（V）

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【CodeForces】[652A]Gabriel and Caterpillar

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【CodeForces】[653A]Bear and Three Balls

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【CodeForces】[656A]Da Vinci Powers

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【CodeForces】[658A]Bear and Reverse Radewoosh

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【CodeForces】[598A]Tricky Sum