need help to configure cpp project with CMake

[dapper aspen]

Hi I am working on a project, in which I want to build the whole project using cmake and the folder structure is as follows

Root directory
Source
HeaderFiles
Graph
Tree
...
SourceFiles
Graph
Tree
...
Tests
Graph
Tree
...

In which locations I need to add the CMakeLists.txt files and what content should I add, if anyone could help it would be helpful...

Thanks

[half barn]

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