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在自己建的项目里import导入 选archive file；添加mysql-connector-java-5.1.18-bin.jar；就好了 阅读全文
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Problem DescriptionDT is a big fan of digital products. He writes posts about technological products almost everyday in his blog.But there is such few... 阅读全文
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DescriptionFarmer John's farm was flooded in the most recent storm, a fact only aggravated by the information that his cows are deathly afraid of wate... 阅读全文
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DescriptionStandard web browsers contain features to move backward and forward among the pages recently visited. One way to implement these features i... 阅读全文
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DescriptionThe island nation of Flatopia is perfectly flat. Unfortunately, Flatopia has no public highways. So the traffic is difficult in Flatopia. T... 阅读全文
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SubmitStatus DescriptionBenny has a spacious farm land to irrigate. The farm land is a rectangle, and is divided into a lot of samll squares. Water pi... 阅读全文
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SubmitStatus DescriptionThese are N cities in Spring country. Between each pair of cities there may be one transportation track or none. Now there is ... 阅读全文
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SubmitStatus DescriptionFreddy Frog is sitting on a stone in the middle of a lake. Suddenly he notices Fiona Frog who is sitting on another stone. He ... 阅读全文
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Agri-NetTime Limit:1000MSMemory Limit:10000KTotal Submissions:39960Accepted:16256DescriptionFarmer John has been elected mayor of his town! One of his... 阅读全文
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SubmitStatusDescriptionThere are N villages, which are numbered from 1 to N, and you should build some roads such that every two villages can connect ... 阅读全文