First contest and my rating is 420 -_-

Of course it's 420, I mean the first problem was literally about 67, and hints of 67, 69, and 420 were everywhere. Smart people competition flooded with brainrot numbers... I love this place

Also is a first score of 420 good? I'm pretty new here. I got questions A and C correct, I tried using sympy for D but sadly it isn't supported.