Difference between revisions of "2017 China Collegiate Programming Contest Final (CCPC2017)"
Jump to navigation
Jump to search
Xiejiadong (talk | contribs) (Created page with "== Problem A == Solved by dreamcloud.00:08:07 题意: 题解: == Problem B == Unsolved. 题意: 题解: == Problem C == Solved by oxx1108.00:33:54(-2) 题意...") |
Xiejiadong (talk | contribs) |
||
Line 63: | Line 63: | ||
== Problem I == | == Problem I == | ||
+ | |||
+ | 开这道题目仅仅是因为清晰度极高的图片吸引了我。 | ||
Solved by Xiejiadong.04:53:38(-4) | Solved by Xiejiadong.04:53:38(-4) | ||
− | + | 题意:联通且颜色相同的边算作一组,会有$m$次修改,求每一次修改以后的组数。 | |
− | + | 题解:我们用$f[i]$表示结点$i$连出去的边所拥有的颜色数量,因为直接$\sum f[i]$会有$n$条边重复计算,所以一个图上的总的组数就是$\sum f[i]-n$ | |
== Problem J == | == Problem J == |
Revision as of 07:28, 28 August 2018
Problem A
Solved by dreamcloud.00:08:07
题意:
题解:
Problem B
Unsolved.
题意:
题解:
Problem C
Solved by oxx1108.00:33:54(-2)
题意:
题解:
Problem D
Unsolved.
题意:
题解:
Problem E
Solved by dreamcloud.00:18:27
题意:
题解:
Problem F
Unsolved.
题意:
题解:
Problem G
Solved by oxx1108.02:24:42(-1)
题意:
题解:
Problem H
Unsolved.
题意:
题解:
Problem I
开这道题目仅仅是因为清晰度极高的图片吸引了我。
Solved by Xiejiadong.04:53:38(-4)
题意:联通且颜色相同的边算作一组,会有$m$次修改,求每一次修改以后的组数。
题解:我们用$f[i]$表示结点$i$连出去的边所拥有的颜色数量,因为直接$\sum f[i]$会有$n$条边重复计算,所以一个图上的总的组数就是$\sum f[i]-n$
Problem J
Solved by Xiejiadong.03:59:12
题意:
题解:
Problem K
Solved by Xiejiadong.00:15:55
题意:
题解: