If you are using C# and running out of memory somewhere at test 36 think how to gracefully call the GC because the heap is full of strings u read from console.

Thanks a lot. I thought that I need to use some other algorithm, because I just created a dictionary with the bill key and  value counter++ then did sorting through the Linq and it's definitely inefficient, but in I still succeeded. I inserted a GC.Collect() for every 1000 iterations of reading and I passed all the tests.

Edited by author 24.10.2021 18:54

Thank you, i get tired of this problem <3