I participated round 446, after system test, system tell me my 32403500 coincide with 32404737. The code is surprisingly similar, however I can prove it was written by me. When I see 891C - Envy, I remember a similar one 160D - Edges in MST, so I refer to my own solution 4398082. It is easy to see that 32403500 and 4398082 are quite similar at some parts of the code, especially in the beginning of the code and in the beginning of the main. Some variable defined in 32403500 is unused, because they just come from 4398082.
Please explain how to get my code:)--Jones.Polynomial