add data raw file for Bulgaria MO

Add data for BalticWay Mathematical Contests (#5)

Add data for IberoAmerican MO (#18)

Fix EGMO data errors

Add data for Canadian Mathematical Olympiad (CANADA MO) (#3)

Add data for european grils mathematical olympiad (EGMO) (#4)

Add data for International Zhautykov Olympiad (#17)

Add data for Balkan shortlist (#11)

Remove USA_TST_TST dirctory

add_benelux_folder (#16)

Fix NaN value to json error

Fix miss the Balkan 2021

Data structure standardization (#14)

fix encoding in file names

enhance dataset loading script with multithreading and tqdm

Add data for Blakan MO (#12)

Add data for JBMO (#13)

update readme

Add data for French TSTS (#10)

Add data for Dutch TST (#9)

Add data for Germany TST (#8)

APMO data: Fix script bug and manually fix data errors

Add data for romanian master of mathematics (RMM) (#1)

Update olympiads-ref.py (#7)

Add data for asian pacific mathematics olympiad (APMO) (#2)

Add dataset loading script

add LFS support for pdf and word documents

edit README.md: add folder for download_script

updtae README.md: add instructions to add more data using pipeline.

add data for IMO, USA_TST, USA_TSTST, USAJMO, USAMO

add README

add git ignore

initial commit