tophbot
February 21, 2021, 11:04am
1
For a very long time, problem difficulty calculation was disabled on Toph. It and a few other things were disabled to make it easier to transition from Toph’s old database code to the current one.
This is a companion discussion topic for the original entry at https://blog.toph.co/changelog/2021-02-21-fixed-problem-difficulty-solver-author-ratings/
I wonder how Toph calculates problem difficulty.
hjr265
March 30, 2021, 5:24pm
3
Modified ELO. Roughly speaking: If a problem takes more submissions in average to be solved, it is considered to be harder.
Each problem is then assigned a score between -1.0 and 1.0 (easy to hard).
I can guess why Copycat was once judged as a very hard problem.
1 Like
hjr265
March 30, 2021, 5:29pm
5
Problems that are mostly attempted by beginners is a challenge in this method of estimating difficulty.
1 Like
Oh anyways,
I can guess why Copycat was once judged as a very hard problem.
The like in this post seems to be your 50th like given to me.
