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Description Flip game is played on a rectangular 4x4 field with two-sided pieces placed on each of its 16 squares. One side of each piece is white ... 阅读全文
posted @ 2015-08-20 19:45
星斗万千
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摘要：
A number that will be the same when it is written forwards or backwards is known as a palindromic number. For example, 1234321 is a palindromic numb... 阅读全文
posted @ 2015-08-20 14:13
星斗万千
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