Search for similar cells in column and set corresponding value

Hi all,

I have a list of codes in column A, I fill columns B,C,D with "x", depending on the situation.
I need a program that finds similar codes in column a and fills in the corresponding cell like in the attached image so I don`t have to search previous inputs to set the same value.

I do not want to use formulas because they take a lot of time to calculate, I have 9000+ codes to search through.

Thank you!