I tried to solve this problem: https://vjudge.net/problem/UVA-13139
and here is my implementation: https://paste.myst.rs/cc9vzvcn

Honestly, I don’t struggle with implementing a standard segment tree, but when it comes to range updates, it gets challenging. If anyone could help me or provide some problems, implementations, or resources to identify my error, I would greatly appreciate it. Thanks in advance!

Hi! Because what problems start with BFS? Since I saw some problems but they seem too complex to start, could someone recommend some problems with which to start being able to use this algorithm. I thank you in advance.

Hi!, I hope you have a good day. I really want to learn Hashing. I've read some blogs but I can't find one for beginners or a very friendly list of problems to start with. If someone could help me.. thanks in advance.