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02 2013 档案

摘要:Cube paintingWe have a machine for painting cubes. It is supplied with three different colors: blue, red and green. Each face of the cube gets one of ... 阅读全文
posted @ 2013-02-25 18:52 Gifur 阅读(576) 评论(0) 推荐(0) 编辑
摘要:Power of CryptographyBackgroundCurrent work in cryptography involves (among other things) large prime numbers and computing powers of numbers modulo f... 阅读全文
posted @ 2013-02-24 10:37 Gifur 阅读(307) 评论(0) 推荐(0) 编辑
摘要:Problem A.Ant on a ChessboardBackgroundOne day, an ant called Alice came to an M*M chessboard. She wanted to go around all the grids. So she began to ... 阅读全文
posted @ 2013-02-24 10:00 Gifur 阅读(395) 评论(0) 推荐(0) 编辑

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