Difference between revisions of "2020 CCPC Mianyang Onsite"

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dp[i][j]表示做到第i位二进制数时,这一位能取到小于等于j的数时的方案数
 
dp[i][j]表示做到第i位二进制数时,这一位能取到小于等于j的数时的方案数
 +
 
根据j的奇偶性可以直接向下dp,因为总的状态数不会很多,用map保存dp数组即可
 
根据j的奇偶性可以直接向下dp,因为总的状态数不会很多,用map保存dp数组即可

Revision as of 14:17, 3 November 2020

Problem A

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Problem B

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Problem C

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Problem D

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Problem F

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Problem G

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Problem I

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Problem L

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dp[i][j]表示做到第i位二进制数时,这一位能取到小于等于j的数时的方案数

根据j的奇偶性可以直接向下dp,因为总的状态数不会很多,用map保存dp数组即可