原创 hdu 2669
Description The Sky is Sprite. The Birds is Fly in the Sky. The Wind is Wonderful. Blew Throw the Trees Trees are
2018-09-04 21:25:39
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原创 F - 概率（經典問題）
Description Sometimes some mathematical results are hard to believe. One of the common problems is the birthday parad
2018-09-04 21:25:39
原创 hdu 1465
Description 大家常常感慨，要做好一件事情真的不容易，確實，失敗比成功容易多了！ 做好“一件”事情尚且不易，若想永遠成功而總從不失敗，那更是難上加難了，就像花錢總是比掙錢容易的道理一樣。 話雖這樣說，我還是要告訴大家，要
2018-09-04 21:25:39
原创 概率
Description As Harry Potter series is over, Harry has no job. Since he wants to make quick money, (he wants everythin
2018-09-04 21:25:38
原创 light oj1074
Description The people of Mohammadpur have decided to paint each of their houses red, green, or blue. They've also de
2018-09-04 21:25:38
原创 hdu 1405
Description Tomorrow is contest day, Are you all ready? We have been training for 45 days, and all guys must be tire
2018-09-04 21:25:38
原创 poj 3356
Description Let x and y be two strings over some finite alphabet A. We would like to transform x into y allowing on
2018-09-04 21:25:38
原创 poj 4548
Description 小明對數的研究比較熱愛，一談到數，腦子裏就涌現出好多數的問題，今天，小明想考考你對素數的認識。 問題是這樣的：一個十進制數，如果是素數，而且它的各位數字和也是素數，則稱之爲“美素數”，如29，本身是素
2018-09-04 21:25:31
原创 light oj 1317
Description You probably have played the game "Throwing Balls into the Basket". It is a simple game. You have to thro
2018-09-04 21:25:31