You can download the 2021 competition materials and technical write-ups from several technical repositories and official archives:
If you are looking for a specific write-up, the most documented problems from that year include: You can download the 2021 competition materials and
The garbled text you provided, "2021 群星 дёÂ國夢之聲·我們的жÂЊз¬¬дё‰еÂЈ 第12жњџ," is a common encoding error (mojibake) that translates to (2021 Spring National Undergraduate Electronics Design Contest TI Cup Questions). You can download the 2021 competition materials and