Which algorithms did you use while generating trees and graphs? (because it is hard to generate graphs test cases, It is important to be able to create a graph with uniform distribution and high depth.)

Also, it would be awesome if we can choose features like a connected graph or DAG option to graph generator.

Maybe, it is better first line of the multi test case is the number of test case

and

if i generate, i can't revise number of test case, and if i clear, all setting is clear

It is giving Application Error

Hey, I've also made a beginner-friendly Test Case generator do check it out and provide feedback or suggestions : https://tanmay-901.github.io/test-case-generator/

I don't know if this is just on my computer, but when you click "directed unweighted graph" it takes you to "directed weighted graph" and vice versa.