2017年10月7日
Codeforces-869 C. The Intriguing Obsession [组合数学]
摘要： The Intriguing Obsession time limit per test 1 second There are three clusters of islands, conveniently coloured red, blue and purple. The clusters co 阅读全文
posted @ 2017-10-07 14:04 zprhhs 阅读(201) 评论(0) 推荐(0) 编辑
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