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        <dc:format>text/html</dc:format>
        <dc:date>2022-04-11T10:34:21+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:个人训练记录</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E4%B8%AA%E4%BA%BA%E8%AE%AD%E7%BB%83%E8%AE%B0%E5%BD%95&amp;rev=1649644461&amp;do=diff</link>
        <description>wzy

qshr

wyl</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2023-07-18T14:56:13+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:范式杯_2023牛客暑期多校训练营1</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%8C%83%E5%BC%8F%E6%9D%AF_2023%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A51&amp;rev=1689663373&amp;do=diff</link>
        <description>比赛情况

总题数:13 场上过题:8 至今过题:9 排名:(/)

比赛过程

开场wzy开D，没想清楚就交了一发，WA，然后想了一下感觉想不清楚了，又交了一发过了(16min)。

之后wzy过J(34min)，qshr过K(59min)，wyl过H(71min)，这三道题比较顺利。</description>
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        <dc:date>2023-07-21T21:50:37+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:范式杯_2023牛客暑期多校训练营2</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%8C%83%E5%BC%8F%E6%9D%AF_2023%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A52&amp;rev=1689947437&amp;do=diff</link>
        <description>比赛情况

总题数:13 场上过题:8 至今过题:9 排名:(/)

比赛过程

开场wyl开E，WA一次后通过(10min)。qshr开K，一次通过(26min)。

qshr写代码时wyl和wzy讨论了G，感觉很对。于是wyl开始写G。

这时突然发现I过了一车人，qshr和wzy讨论了一下，wzy直接上机写I，写完通过(40min)。</description>
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        <dc:date>2023-07-28T22:14:45+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:范式杯_2023牛客暑期多校训练营4</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%8C%83%E5%BC%8F%E6%9D%AF_2023%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A54&amp;rev=1690553685&amp;do=diff</link>
        <description>比赛情况
总题数:12 场上过题:6 至今过题:6 排名:(/)

比赛过程

开场wzy想冲A，跟wyl讨论了一下发现假了。qshr开L，1A(16min)。

wzy想到了A的正解，1A(26min)。qshr做F，1A(40min)。

wyl上机写E，发现不太对，qshr想到了J的dp，但是过不了样例。</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2023-08-01T12:16:41+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:范式杯_2023牛客暑期多校训练营5</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%8C%83%E5%BC%8F%E6%9D%AF_2023%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A55&amp;rev=1690863401&amp;do=diff</link>
        <description>比赛情况 总题数:10 场上过题:8 至今过题:8 排名:(/)

比赛过程

wyl G 1A,wzy D 1A

然后qshr开E，wyl开H，wzy开C。结果wzy的C读错了，写了个假代码，WA。

wyl开始写H，1A。wzy C猜了个结论，又WA。wyl修改了一下结论，过了（事实上结论是错的，数据弱了）</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2023-08-08T17:26:58+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:范式杯_2023牛客暑期多校训练营6</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%8C%83%E5%BC%8F%E6%9D%AF_2023%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A56&amp;rev=1691486818&amp;do=diff</link>
        <description>比赛情况

总题数:13 场上过题:8 至今过题:11 排名:(5/)

比赛过程

开场wzy冲C，qshr冲G，wyl冲E，结果三个人都在WA。改了好多次才过了E(18min)，G(25min)，C(48min)

然后wyl对A有了树形背包思路，开始写，wzy和qshr讨论B，也有思路（组合恒等式没学明白，用的dp）。</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2023-08-12T11:13:04+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:范式杯_2023牛客暑期多校训练营8</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%8C%83%E5%BC%8F%E6%9D%AF_2023%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A58&amp;rev=1691809984&amp;do=diff</link>
        <description>比赛情况

总题数:11 场上过题:5 至今过题:5 排名:(5/)

比赛过程

开场wzy冲A，结果少输出了一个数，WA了一次过了，然后wyl做G，是个积分的数学题。

wzy和wyl讨论H，qshr继续积分，wzy想了个做法，寄了，wyl想了一个，也寄了，又想了一个，过了。</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%8C%83%E5%BC%8F%E6%9D%AF_2023%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A59&amp;rev=1692090143&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2023-08-15T17:02:23+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:范式杯_2023牛客暑期多校训练营9</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%8C%83%E5%BC%8F%E6%9D%AF_2023%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A59&amp;rev=1692090143&amp;do=diff</link>
        <description>比赛情况

总题数:11 场上过题:5 至今过题:5 排名:(5/)

比赛过程

今天qshr有事不在，双人作战。

开场wyl做E，1A(11min)，wzy想B，没啥思路，然后wyl做D，过了(39min)。wzy和wyl讨论了I，wzy写，也过了(55min)。</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%94%9A%E6%9D%A5%E6%9D%AF_2022%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A5_%E5%8A%A0%E8%B5%9B&amp;rev=1661663980&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-08-28T13:19:40+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:蔚来杯_2022牛客暑期多校训练营_加赛</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%94%9A%E6%9D%A5%E6%9D%AF_2022%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A5_%E5%8A%A0%E8%B5%9B&amp;rev=1661663980&amp;do=diff</link>
        <description>请假了没打</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%94%9A%E6%9D%A5%E6%9D%AF_2022%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A52&amp;rev=1658661366&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-07-24T19:16:06+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:蔚来杯_2022牛客暑期多校训练营2</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%94%9A%E6%9D%A5%E6%9D%AF_2022%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A52&amp;rev=1658661366&amp;do=diff</link>
        <description>比赛情况

总题数:12 场上过题:9 至今过题:9 排名:(51/1381)

A:

B:

C:solved by wzy/wyl

D:solved by wyl/qshr 

E:solved by wyl/wzy

F:

G:solved by qshr

H:solved by wyl

I:solved by wyl

J:solved by wyl

K:solved by wzy

L:solved by qshr</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%94%9A%E6%9D%A5%E6%9D%AF_2022%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A53&amp;rev=1658767442&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-07-26T00:44:02+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:蔚来杯_2022牛客暑期多校训练营3</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%94%9A%E6%9D%A5%E6%9D%AF_2022%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A53&amp;rev=1658767442&amp;do=diff</link>
        <description>比赛情况

总题数:10 场上过题:4 至今过题:4 排名:(159/1338)

A:

B:

C:

D:

E:

F:

G:

H:

I:

J:

K:

L:

比赛过程

qshr晚来了1h

开场找签到，wzy发现c题过了很多人，但是没啥思路，然后看到A是个求lca的题，开始写。</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%94%9A%E6%9D%A5%E6%9D%AF_2022%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A56&amp;rev=1659949977&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-08-08T17:12:57+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:蔚来杯_2022牛客暑期多校训练营6</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%94%9A%E6%9D%A5%E6%9D%AF_2022%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A56&amp;rev=1659949977&amp;do=diff</link>
        <description>比赛情况

总题数:12 场上过题:6 至今过题:7 排名:(/)

A:

B:

C:

D:

E:

F:

G:

H:

I:

J:

K:

L:

比赛过程

开场签到很顺利qshr过M(28min) ，wyl过J(29min)，wzy过G(35min)和B(43min)

然后A题wyl想了个贪心，但是一直wa</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%94%9A%E6%9D%A5%E6%9D%AF_2022%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A57&amp;rev=1659949650&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-08-08T17:07:30+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:蔚来杯_2022牛客暑期多校训练营7</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%94%9A%E6%9D%A5%E6%9D%AF_2022%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A57&amp;rev=1659949650&amp;do=diff</link>
        <description>比赛情况

总题数:12 场上过题:6 至今过题:6 排名:(/)

A:

B:

C:

D:

E:

F:

G:

H:

I:

J:

K:

L:

比赛过程

wyl不在

开场找签到，wzy上来写构造题C，wa了，然后去看J，qshr继续想C

qshr写C，wa了，然后wzy写J过了(36min)，qshr改了下C过了(38min -2)。</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%94%9A%E6%9D%A5%E6%9D%AF_2022%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A58&amp;rev=1660569880&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-08-15T21:24:40+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:蔚来杯_2022牛客暑期多校训练营8</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%94%9A%E6%9D%A5%E6%9D%AF_2022%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A58&amp;rev=1660569880&amp;do=diff</link>
        <description>比赛情况

总题数:12 场上过题:6 至今过题:7 排名:(/)

A:

B:

C:

D:

E:

F:

G:

H:

I:

J:

K:

L:

比赛过程

wyl上来做F，wa1次之后过了(29min -1)

wzy做D，犯了很多小错误，wa4次过了(107min -4)

qshr做J，感觉想法和实现都没啥问题，但是一直wa</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%94%9A%E6%9D%A5%E6%9D%AF_2022%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A59&amp;rev=1660570203&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-08-15T21:30:03+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:蔚来杯_2022牛客暑期多校训练营9</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%94%9A%E6%9D%A5%E6%9D%AF_2022%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A59&amp;rev=1660570203&amp;do=diff</link>
        <description>比赛情况

总题数:12 场上过题:6 至今过题:7 排名:(/)

A:

B:

C:

D:

E:

F:

G:

H:

I:

J:

K:

L:

比赛过程

wzy写A，一发过了(6min)。wyl写B，一发过了(44min)。wyl写G，一发过了。(80min)

之后wyl构造E题，写完后发现需要的数太多了。</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%94%9A%E6%9D%A5%E6%9D%AF_2022%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A510&amp;rev=1661504187&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-08-26T16:56:27+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:蔚来杯_2022牛客暑期多校训练营10</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%94%9A%E6%9D%A5%E6%9D%AF_2022%E7%89%9B%E5%AE%A2%E6%9A%91%E6%9C%9F%E5%A4%9A%E6%A0%A1%E8%AE%AD%E7%BB%83%E8%90%A510&amp;rev=1661504187&amp;do=diff</link>
        <description>比赛情况

总题数:11 场上过题:5 至今过题:6 排名:(/)

A:

B:

C:

D:

E:

F:

G:

H:

I:

J:

K:

L:

比赛过程

qshr开场乱搞I，wa了2次之后过了。(62min -2)

wzy写H，一直过不了样例，qshr指出错误之后过了。(81min)</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%AE%AD%E7%BB%83%E8%AE%B0%E5%BD%95&amp;rev=1699237983&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2023-11-06T10:33:03+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:训练记录</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:%E8%AE%AD%E7%BB%83%E8%AE%B0%E5%BD%95&amp;rev=1699237983&amp;do=diff</link>
        <description>2022/4/02-ICPC Dhaka Regional 2018

2022/4/10-ACM ICPC 2013-2014, Moscow Subregion

2022/4/17-ACM ICPC 昆明区域赛

2022/4/24 2018-2019 ICPC Northwestern European Regional Programming Contest (NWERC 2018).

2022/4/30- 2017-2018 ACM-ICPC Pacific Northwest Regional Contest (Div. 1)

2022/5/7 AGM 2022 Qualification Round

2022/5/14 THUPC 2022 决赛

2022/7/23 &quot;蔚来杯&quot;2022牛客暑期多校训练营2

2022/7/25 &quot;蔚来杯&quot;2022牛客暑期多校训练营3

2022/7/28 cf加训第一场

2023/11/05 ICPC南京区域赛

训练记录
  比赛时间    比赛名称    赛中过题    总计过题    总题目数    排名（校内）…</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:2022_4_02-icpc_dhaka_regional_2018&amp;rev=1650012466&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-04-15T16:47:46+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:2022_4_02-icpc_dhaka_regional_2018</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:2022_4_02-icpc_dhaka_regional_2018&amp;rev=1650012466&amp;do=diff</link>
        <description>比赛情况

总题数:10 场上过题:6 至今过题:8 排名:5/14

A:

B:solved by wyl

C:solved by wzy

题意:求n!的约数的约数个数和，多组数据

题解:对n!分解质因数 得$n!= \prod {p_i}^{q_i} $,每个质因子对答案的贡献为$ (q_i+1)*(q_i+2)/2 $,最终答案为 $\prod \frac{(q_i+1)*(q_i+2)}{2} $
$ (ascii(c)-95)! $$len&lt;15$$len&lt;30$</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:2022_4_10-acm_icpc_2013-2014_moscow_subregion&amp;rev=1650011180&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-04-15T16:26:20+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:2022_4_10-acm_icpc_2013-2014_moscow_subregion</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:2022_4_10-acm_icpc_2013-2014_moscow_subregion&amp;rev=1650011180&amp;do=diff</link>
        <description>比赛情况

总题数:12 场上过题:6 至今过题:8

A:solved by qshr

题意：给n个点每点一个权值a表示可以向外连多少边，问最终可以形成多少三元环

题解：n&lt;=2显然为0，大于2时取出点权最大的a和点权和S，答案为min(S/3,S-a)$ q=(1-a)*p_1+p_2*a $$ p_2,a $$p_1$$p_2,a$${q_i}$$q_i$$ q^{n}(1-q)^{m} $$ \frac {n}{n+m} $$r_i$$ r_i &gt;r_{i+1} $$\frac {n_1+n_2}{n_1+n_2+m_1+m_2} $$ q_1=p_2*a 和 q_n=1-a+p_2*a $$a=0$$p_2$</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:2022_4_17-acm_icpc_%E6%98%86%E6%98%8E%E5%8C%BA%E5%9F%9F%E8%B5%9B&amp;rev=1652182761&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-05-10T19:39:21+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:2022_4_17-acm_icpc_昆明区域赛</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:2022_4_17-acm_icpc_%E6%98%86%E6%98%8E%E5%8C%BA%E5%9F%9F%E8%B5%9B&amp;rev=1652182761&amp;do=diff</link>
        <description>比赛情况

总题数:13 场上过题:7 至今过题:7

A:solved by wzy

大模拟，画氨基酸。

B:

C:

D:solved by qshr&amp;wzy

题意：给定k，构造一个长度n的序列($n \leq 365,k \leq 1e8$)，这个序列恰好有k种方式分成一个不增序列和一个不降序列(不改变元素的相对顺序)$ \overbrace{1\ldots 1 }^{x1个1} \overbrace{2\ldots 2 }^{x2个2} \overbrace{3\ldots 3 }^{x3个3}\cdots $$(2^{x1}-1)+(2^{x2}-1)+(2^{x3}-1)+\cdots +1$$P_i$$k\leq 10$</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:2022_4_24&amp;rev=1651319937&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-04-30T19:58:57+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:2022_4_24</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:2022_4_24&amp;rev=1651319937&amp;do=diff</link>
        <description>&lt;https://codeforces.com/group/EH7iuAnqoT/contest/379146&gt;

比赛情况

总题数:11 场上过题:9 至今过题:9 排名:1/9 (/)

A:solved by qshr&amp;wzy

B:solved by wzy

C:solved by qshr&amp;wzy

D:

E:solved by qshr&amp;wzy

F:

G:solved by qshr&amp;wzy

H:solved by wzy

I:solved by wzy

J:solved by qshr&amp;wzy

K:solved by qshr&amp;wzy</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:2022_4_30-_2017-2018_acm-icpc_pacific_northwest_regional_contest_div._1&amp;rev=1651371469&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-05-01T10:17:49+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:2022_4_30-_2017-2018_acm-icpc_pacific_northwest_regional_contest_div._1</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:2022_4_30-_2017-2018_acm-icpc_pacific_northwest_regional_contest_div._1&amp;rev=1651371469&amp;do=diff</link>
        <description>&lt;https://codeforces.com/group/EH7iuAnqoT/contest/380094&gt;

总题数:13 场上过题:13 至今过题:13 排名:(1/13)

A:solve by wzy

B:solve by wyl

C:solve by wyl

D:solve by wyl

E:solve by wyl

F:solve by wzy

G:solve by qshr

H:solve by wyl

I:solve by wyl

J:solve by qshr

K:solve by qshr

L:solve by qshr</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:2022_5_7_agm_2022_qualification_round&amp;rev=1652182617&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-05-10T19:36:57+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:2022_5_7_agm_2022_qualification_round</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:2022_5_7_agm_2022_qualification_round&amp;rev=1652182617&amp;do=diff</link>
        <description>比赛情况

&lt;https://codeforces.com/gym/103604&gt;

总题数:12 场上过题:8 至今过题:8 排名:(12/83)

A:

B:

C:

D:

E:

F:

G:

H:

I:

J:

K:

L:

比赛过程

临时决定的一场训练。。wzy困，qshr眼睛不舒服，wyl来晚了。。

刚开始wzy和qshr以为wyl来不了，就随便在cf找了一场gym，结果刚开始wyl就说晚一些可以来。。</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:2022_5_14_thupc_2022_%E5%86%B3%E8%B5%9B&amp;rev=1652776920&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-05-17T16:42:00+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:2022_5_14_thupc_2022_决赛</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:2022_5_14_thupc_2022_%E5%86%B3%E8%B5%9B&amp;rev=1652776920&amp;do=diff</link>
        <description>比赛情况

总题数:10 场上过题:4 至今过题:4 排名:(107/130)

A:

B:

C:

D:

E:

F:

G:

H:

I:

M:

比赛过程

dirt:

总结

裂开</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:abc247&amp;rev=1649646950&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-04-11T11:15:50+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:abc247</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:abc247&amp;rev=1649646950&amp;do=diff</link>
        <description>A-E 水题

F:
题意:有n个卡片 每张卡片正面是Pi 背面是Qi P,Q为1-n的排列 求取出若干张卡片使1-n至少出现一次的方案数

题解:每个环分开考虑,dp预处理长度为i的环的答案，最后乘起来就行

G:

H:</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:cf%E5%8A%A0%E8%AE%AD%E7%AC%AC%E4%B8%80%E5%9C%BA&amp;rev=1659000953&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-07-28T17:35:53+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:cf加训第一场</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:cf%E5%8A%A0%E8%AE%AD%E7%AC%AC%E4%B8%80%E5%9C%BA&amp;rev=1659000953&amp;do=diff</link>
        <description>比赛情况

总题数:10 场上过题:4 至今过题:4 排名:(159/1338)

A:

B:

C:

D:

E:

F:

G:

H:

I:

J:

K:

L:

比赛过程

qshr晚来了1h

开场找签到，wzy发现c题过了很多人，但是没啥思路，然后看到A是个求lca的题，开始写。</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:cf%E5%8A%A0%E8%AE%AD%E7%AC%AC1%E5%9C%BA&amp;rev=1690444362&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2023-07-27T15:52:42+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:cf加训第1场</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:cf%E5%8A%A0%E8%AE%AD%E7%AC%AC1%E5%9C%BA&amp;rev=1690444362&amp;do=diff</link>
        <description>比赛情况

总题数:12 场上过题:5 至今过题:6 排名:(/)

比赛过程

开场wzy开D，写完WA，qshr开K，1A(20min)，wyl开G，1A(38min)，wzy改D，2A(43min)

然后发现有人过了C，三人讨论了一下得到一个FFT的做法，wyl上机写。</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:cf%E5%8A%A0%E8%AE%AD%E7%AC%AC2%E5%9C%BA&amp;rev=1691486240&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2023-08-08T17:17:20+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:cf加训第2场</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:cf%E5%8A%A0%E8%AE%AD%E7%AC%AC2%E5%9C%BA&amp;rev=1691486240&amp;do=diff</link>
        <description>比赛情况

总题数:13 场上过题:8 至今过题:11 排名:(5/)

比赛过程

开场wzy看A，感觉比较麻烦，qshr发现L是签到，写完1A(00:24)，wyl发现E是签到，1A(00:37)。

wyl继续写F，细节出错疯狂WA，4次之后才过(00:58)，qshr写G，1A(01:02)。</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:cf%E5%8A%A0%E8%AE%AD%E7%AC%AC3%E5%9C%BA&amp;rev=1661504399&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-08-26T16:59:59+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:cf加训第3场</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:cf%E5%8A%A0%E8%AE%AD%E7%AC%AC3%E5%9C%BA&amp;rev=1661504399&amp;do=diff</link>
        <description>比赛情况

总题数:12 场上过题:6 至今过题:7 排名:(/)

A:

B:

C:

D:

E:

F:

G:

H:

I:

J:

K:

L:

比赛过程

wyl不在，wzy和qshr晚来了一小时。

wzy上来写I，没取模，wa2次，之后过了。 (100min -2)

wzy写B，边界没考虑清楚wa1次过了。(133min -1)</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:front_page&amp;rev=1689662453&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2023-07-18T14:40:53+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:front_page</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:front_page&amp;rev=1689662453&amp;do=diff</link>
        <description>uncomputable

训练记录

个人训练记录</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:icpc%E5%8D%97%E4%BA%AC%E5%8C%BA%E5%9F%9F%E8%B5%9B&amp;rev=1699240403&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2023-11-06T11:13:23+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:icpc南京区域赛</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:icpc%E5%8D%97%E4%BA%AC%E5%8C%BA%E5%9F%9F%E8%B5%9B&amp;rev=1699240403&amp;do=diff</link>
        <description>&lt;https://board.xcpcio.com/icpc/48th/nanjing&gt;

校排rk5，继第一场昆明区域赛卡一个中档题（离散化细节错误）最终未能出线、之后越打越差以来最好成绩

开局qshr签I(0:11)，wyl签G(0:19)，qshr签A(0:46)，wyl签C(0:52)，F(1:08)。行云流水般签完5个签到，暂列正式队rk1，罚时大优</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:multi2022-nowcoder-4&amp;rev=1659363846&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-08-01T22:24:06+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:multi2022-nowcoder-4</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:multi2022-nowcoder-4&amp;rev=1659363846&amp;do=diff</link>
        <description>比赛情况

A:

B:

C:

D:

E:

F:

G:

H:

I:

J:

K:

L:

比赛过程

wyl不在。

wzy上来开了个签到D，1A(18min)。

qshr也开了个签到K，wa了一次过了(40min -1)。

wzy写N，结果爆long long了，边界也没处理好，wa3次过了(54min -3)。</description>
    </item>
    <item rdf:about="https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:wzy&amp;rev=1649646780&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-04-11T11:13:00+0800</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>2022-2023:teams:rand_and_accepted:wzy</title>
        <link>https://wiki.cvbbacm.com/doku.php?id=2022-2023:teams:rand_and_accepted:wzy&amp;rev=1649646780&amp;do=diff</link>
        <description>abc247</description>
    </item>
</rdf:RDF>
