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题目链接: Garden of Eden Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 210 Accepted Submission(s 阅读全文
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题目链接: 4517: [Sdoi2016]排列计数 Description 求有多少种长度为 n 的序列 A,满足以下条件: 1 ~ n 这 n 个数在序列中各出现了一次 若第 i 个数 A[i] 的值为 i,则称 i 是稳定的。序列恰好有 m 个数是稳定的 满足条件的序列可能很多,序列数对 10 阅读全文
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A. Buy a Shovel time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output A. Buy a Shovel time limi 阅读全文
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题目链接: The Next Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1766 Accepted Submission(s): 669 P 阅读全文