
组合数学
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Codeforces Round #258 (Div. 2)E(组合数+容斥原理)
E. Devu and Flowerstime limit per test4 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputDevu wants to decorate his garden with原创 2014-08-26 20:28:17 · 624 阅读 · 0 评论 -
2014多校8(1001)hdu4945(dp+组合数计数+求逆元)
2048Time Limit: 3000/1500 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 566 Accepted Submission(s): 129Problem DescriptionTeacher Mai is addicted原创 2014-08-15 15:38:33 · 1664 阅读 · 0 评论