I am not able to find out the computational complexity of the Louvain Algorithm. Can anyone here help me? link of the paper given below:

DOI: 10.1088/1742-5468/2008/10/P10008

https://doi.org/10.1038/s41598-019-41695-z.

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  [1]: https://i.sstatic.net/6BpXV.png