HCI IRSCP Group B Trees Practice (0/900)

Contest Description
Trees 1-2: LCA and Euler Tour Technique, HLD Not on Codebreaker: https://cses.fi/problemset/task/1137/ More HLD problems can be found in this blog: https://codeforces.com/blog/entry/81317 (or elsewhere)
Scoreboard
Problem ID Your Score Title Source Problem Type
ancestor
N/A
ancestor Classic problem Batch
railway
N/A
railway CPSPC 2004 Batch
oranges2
N/A
oranges2 RI Deccourse 2018 Selection Test (0rang3) Batch
roadsideadverts
N/A
roadsideadverts NOI 2017 Batch
truck
N/A
truck NOI 2021 Qualification Batch
snowcow
N/A
Snowcow USACO 2019 December Contest Platinum Batch
smurfpaths
N/A
smurfpaths RI-HCI NOI Selection Test 2020 (rs) Batch
grassplant
N/A
Grass Planting Dunjudge Archive Batch
nian
N/A
Nian 2020 CNY (oolimry) Batch