The text on the video template is wrong, I forgot the change it 🤫. As usual, we practice on CodeForces... Always for some reason, solving permutation-based problems... 😄
Timestamps:
0:00 Intro
1:05 Problem A
6:06 Problem B
15:17 Problem C
34:36 Problem D
1:35:55 Problem E
1:43:36 Explanations