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Codeforces 757B. Bash's Big Day GCD GeekZRF 2017-01-13 21:29 阅读:349 评论:0 推荐:1   
Codeforces 660A. Co-prime Array 最大公约数 GeekZRF 2016-05-25 21:09 阅读:220 评论:0 推荐:0   

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