Hi everyone! I was just writing to ask if anybody could explain the solution of 2257D to me (I couldn't solve it rip rating) I felt the editorial was way too vague and incomprehensible so I'd appreciate it a lot if anyone can elaborate here. ty :)

Lowkey the last D1B (2255B) felt extremely hard (mainly my skill issue) and I couldn't really understand the editorial. Can someone here explain it to me so i can understand it ty :)

These days I really keep struggling with DP problems overall, for example for the problem Seating Arrangement (easy c1 version) it took me ages to see n^2 DP. How do you guys learn and master DP because i rly wanna improve my DP so i can get good.

So, my question goes out to those whom are 1400+, how exactly did you start getting the required performance (avg. 1450-1500) in contests? Im currently practicing in 1300-1600 range, can consistently solve A + B under 10-15 mins but i get slimed on C, i know ive posted a similar blog but this time im asking for more general advice rather than C problems. Appreciate <3

Every time I get into a contest, I've got the same problem. I get solid solves on A and B (usually sub-5 and sub-12/13) respectively but everytime I try C, I AM STUMPED. Normally, during practice i can solve old 1500-1600 problems (like 1900-1800c for example so not too old) pretty decently. Whenever it comes to a contest its like I'm completely dogwater. What do you guys do that allowed you to get over this roadblock? Thanks in advance.

TL:DR : Im garbage tell me tips to solve C ples.