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PKU v. THU (Preliminary Round 2)
Total points: 100
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# 4949. 组合数问题
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The problem was used in the following contest:
IOI 2018 中国国家队选拔赛暨精英赛 (CTSC 2018) Day 2
Upload a .zip file containing placement1.out, placement2.out, placement3.out, placement4.out, placement5.out, placement6.out, placement7.out, placement8.out, placement9.out, placement10.out:
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