两侧同时换到之前的修订记录 前一修订版 后一修订版 | 前一修订版 | ||
2020-2021:teams:farmer_john:2020牛客暑期多校第六场 [2020/07/31 14:42] 2sozx [题解] |
2020-2021:teams:farmer_john:2020牛客暑期多校第六场 [2020/10/07 21:24] (当前版本) jjleo |
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- | ======比赛名称====== | + | ======2020牛客暑期多校第六场====== |
[[https://ac.nowcoder.com/acm/contest/5671|比赛链接]] | [[https://ac.nowcoder.com/acm/contest/5671|比赛链接]] | ||
=====A.===== | =====A.===== | ||
行 15: | 行 15: | ||
=====C.===== | =====C.===== | ||
- | **upsolved by ** | + | **solved by ** |
====题意==== | ====题意==== | ||
====题解==== | ====题解==== | ||
=====D.===== | =====D.===== | ||
- | **solved by ** | + | **upsolved by ** |
====题意==== | ====题意==== | ||
====题解==== | ====题解==== | ||
行 30: | 行 30: | ||
如果$n$为偶数则$k$必须为$\dfrac{n}{2}$否则$k$必为$0$。奇数时构造$n, n-1,1,n-2,2,\cdots$即可,偶数时构造$n, \dfrac{n}{2},n-1,1,n-2,2,\cdots$即可。 | 如果$n$为偶数则$k$必须为$\dfrac{n}{2}$否则$k$必为$0$。奇数时构造$n, n-1,1,n-2,2,\cdots$即可,偶数时构造$n, \dfrac{n}{2},n-1,1,n-2,2,\cdots$即可。 | ||
=====F.===== | =====F.===== | ||
- | **solved by ** | + | **upsolved by ** |
====题意==== | ====题意==== | ||
====题解==== | ====题解==== | ||
=====G.===== | =====G.===== | ||
- | **upsolved by** | + | **solved by** |
====题意==== | ====题意==== | ||
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* MJX:这场又有点犯病 | * MJX:这场又有点犯病 | ||
* ZYF:数位dp没写过两个数的,完全想歪浪费了大把时间。全场梦游+犯病。 | * ZYF:数位dp没写过两个数的,完全想歪浪费了大把时间。全场梦游+犯病。 | ||
+ | * CSK:感觉就算了算分母和写挂了一道水题,梦游了 |