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「BZOJ 3591」最长上升子序列

Posted on 2018-10-13 | In OI

题目大意:

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「NOI 2010」超级钢琴

Posted on 2018-10-13 | In OI

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「POI 2011」Garbage

Posted on 2018-10-12 | In OI

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「SCOI 2016」萌萌哒

Posted on 2018-10-12 | In OI

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「ARC 075E」Meaningful Mean

Posted on 2018-10-11 | In OI

题目大意:给定一个长度为 $n$ 的序列 $a$,问 $a$ 中有多少个区间的平均值不小于 $k$。$n \leq 2 \times 10^5$

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「BZOJ 3687」简单题

Posted on 2018-10-11 | In OI

题目大意:给定一个长度为 $n$ 的序列 $a$,求所有子集和的异或和。$n \leq 1000, \sum a_i \leq 2 \times 10^6$

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「HNOI 2011」XOR和路径

Posted on 2018-10-11 | In OI

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「BZOJ 4318」OSU!

Posted on 2018-10-11 | In OI

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「BZOJ 5027」数学题

Posted on 2018-10-11 | In OI

题目大意:求满足 $ax+by=c$,且 $x\in[l_1,r_1],y\in[l_2,r_2]$ 的整数解有多少对?

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「BZOJ 1477」青蛙的约会

Posted on 2018-10-10 | In OI

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