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Code Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 10059 Accepted: 4816 Description Transmitting and memorizing information is a task tha 阅读全文
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Description Description 现有r个互不相同的盒子和n个互不相同的球,要将这n个球放入r个盒子中,且不允许有空盒子。则有多少种放法? 现有r个互不相同的盒子和n个互不相同的球,要将这n个球放入r个盒子中,且不允许有空盒子。则有多少种放法? Input Input n, r(0 < 阅读全文
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Tom and matrix Time Limit: 3000/1500 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 867 Accepted Submission(s): 284 Pr 阅读全文
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Saving Beans Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 6236 Accepted Submission(s): 2518 Pr 阅读全文