240583538 its_newbie_007

https://www.youtube.com/watch?v=kuf5MCrRBsg

Wow man. Its the same solution , I saw many of us (Blue,cyan even purple) struggling on C no but this guy did it just one attempt I was curious on that time but after the contest I saw youtube the same solution like him and he submitted after it was released. also many of will have a doubt that his the video implemented if ,else if ,and else condition but he implemented if and else with nested..that's not a big deal don't it? also I saw that he had previously skipped record on div 3 so he know the cheating game very well. and finally green..kudos to them bad luck who are struggling.

Recently I have a problem ..How can I count the number of pair who's sum lies between a given range a and b in a vector?? Suppose I have vector is 5 1 2 and the a =4 and b =6 output will be 2 cause 5+1=6 and 1+2 =3 but 5+2=7 which is not be included..So the output should be 2 ,How to solve it in a optimal way?

Recently I solve most of the time 1100/1200 rated problem. Most of the time I am not able to figure out of the solution Example 10/10 watching the solution or getting hint. My question is that is that a nice approach for practice ?? cz every time I am watching the solution?? not mean that I am not spending a time on that.after almost spending 2/3 hour of significant time can't figure out the solution..or moving in a wrong path..(alt account)

I want to get a speed mashup on my implementation recently faced problem on it. So have decided to practice atcoder abc. B,C,D problem so from which round should I start practice ?? earlier the problems were so easy ...

Many times I really stuck on a simple div 2 a level problem. I am approcahing it but not on the right way. I am building such a logic that is not related to it and I can not feel it. I am thinking it should be accepted and also on b level problem many times I can not build the logic if I do after the contest I saw that It was not the approach..what should I do..should I solve atcoder problem to get rid up to it ?? or cses or cf a,b level.??.also some times after watching the tuitorial I understand really well but after few days/month I can not remember the approach for implement it to another problem..after solving a significant amount of problem (almost 700).nothing changed.feels like good for nothing..plz give some advice/suggestion