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| 题号 | 状态 | 题目名称 | 标签 | 通过率 | |
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| CF1980B | Choosing Cubes |
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| CF1980C | Sofia and the Lost Operations |
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| CF1980D | GCD-sequence |
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| CF1980E | Permutation of Rows and Columns |
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| CF1980F1 | Field Division (easy version) |
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| CF1980F2 | Field Division (hard version) |
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| CF1980G | Yasya and the Mysterious Tree |
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| CF1981A | Turtle and Piggy Are Playing a Game |
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| CF1981B | Turtle and an Infinite Sequence |
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| CF1981C | Turtle and an Incomplete Sequence |
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| CF1981D | Turtle and Multiplication |
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| CF1981E | Turtle and Intersected Segments |
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| CF1981F | Turtle and Paths on a Tree |
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| CF1982A | Soccer |
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| CF1982B | Collatz Conjecture |
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| CF1982C | Boring Day |
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| CF1982D | Beauty of the mountains |
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| CF1982E | Number of k-good subarrays |
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| CF1982F | Sorting Problem Again |
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| CF1983A | Array Divisibility |
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