Can someone provide some insight on how to approach this problem ?
# | User | Rating |
---|---|---|
1 | tourist | 3993 |
2 | jiangly | 3743 |
3 | orzdevinwang | 3707 |
4 | Radewoosh | 3627 |
5 | jqdai0815 | 3620 |
6 | Benq | 3564 |
7 | Kevin114514 | 3443 |
8 | ksun48 | 3434 |
9 | Rewinding | 3397 |
10 | Um_nik | 3396 |
# | User | Contrib. |
---|---|---|
1 | cry | 167 |
2 | Um_nik | 163 |
3 | maomao90 | 162 |
3 | atcoder_official | 162 |
5 | adamant | 159 |
6 | -is-this-fft- | 158 |
7 | awoo | 157 |
8 | TheScrasse | 154 |
9 | Dominater069 | 153 |
9 | nor | 153 |
Can someone provide some insight on how to approach this problem ?
You are given two strings a and b. Find shortest string which being repeated infinitely contains the both strings. I.e. find such shortest s that infinite string ss... s... contains a and contains b as a substring.
This problem is not from an ongoing contest. Those who have access to the group (Brazil ICPC Summer School 2018) can view it here!
Note : By tree I mean a weighted tree where each node has a weight.
Is there anyway to build the Cartesian Tree of a Tree efficiently (less than $$$O(n^2)$$$) ?
By Cartesian tree of a tree I mean the following:
Find the node with minimum weight in the Tree. Make it the root.
Recursively do this for each of the subtrees formed and attach their roots to the Earlier root.
I chose to call it Cartesian Tree because it is very similar to this.
Name |
---|