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--select select * from student; --all 查询所有 select all sex from student; --distinct 过滤重复 select distinct sex from student; --count 统计 select count(*) f... 阅读全文
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TourTime Limit: 3000/1000 MS (Java/Others)Memory Limit: 65535/65535 K (Java/Others) Total Submission(s): 2462Accepted Submission(s): 1222 Problem Desc... 阅读全文
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棋盘游戏Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 3358 Accepted Submission(s): 1989 Problem De... 阅读全文
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Girls' research Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 65535/32768 K (Java/Others) Total Submission(s): 1160 Accepted Submission(s): 448 阅读全文
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CodeTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 597Accepted Submission(s): 230 Problem Descri... 阅读全文
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11427 - Expect the ExpectedSome mathematical background. This problem asks you to compute the expected value of a randomvariable. If you haven’t seen ... 阅读全文