I have been uploading video editorials(B, C and D mostly) for Div-2 and Div-3 rounds. The videos are generally updated within 5/6 hours after the contest ends. This blog will contain all the video links. It will be updated after every contest gets over and the videos are uploaded.
Round 645:
Educational Round:
Problem D — Link (N log^2 Approach) (Binary Search + Fenwick Trees)
Problem D — Link (N log N Approach) (Binary Lifting on Fenwick Trees)
Round 643:
Round 642:
Round 641:
Round 638:
Educational Round #86:
Round #637:
Round #636:
Round #635:
Round #633:
If you feel I can improve in any aspect, please drop in your valuable advice below. Please do-not expect me to make editorials on Div2-E or above because I solve it sometime during the contest hours due to the time constraint.
P.S: I never posted this, because I doubted on myself whether I could do it for long or not, on whether people will understand the explanations or not.
Thank you for putting the effort here, I've been following those upsolves. This has been a great resource!
I like the way you explained yesterday's problem D , it feels really awesome when you finally understand solution. Specially constructive problems!
Amazing video. Really helpful fun for us beginners. Please continue to do so and help us. Thank you!
God Bless you!
Very Well Explained Bro ! Thankyou for your Efforts
Auto comment: topic has been updated by striver_79 (previous revision, new revision, compare).
a little correction: it should be problem c instead of problem f in today's round.
Thanks, I simple copy pasted, and changed the link, forgot to change the text, updated! Thanks!
Thank you bro for this much effort ,this helped me a lot
Good work man learned a lot from your videos.
These video editorial are really helpful for beginners like me. Thank you
Really good editorials. The best thing is that you run on each test case step by step and then explain your code properly. And even the voice quality is good.
Yes your videos helped me so much !!
Could you plz make some video in 1d,2d,3d cumulative sum? and matrix exponentiation,gaussian elimination,hashing(multi hashing mostly). plzzzzzzzzzzzzz
Hi this is good idea and i can help you if you want!