Comments

I guess you might try solving the combinatorics and inclusion-exclusion problems from this blog. Not necessarily similar to E but high-quality problems.

How to solve E?

The only reason why I was able to solve the 4th question was that I had seen this video from your Youtube channel in which you applied dfs on the trie. It's a simple and easy concept but still was very helpful. Thanks!

ecnerwala. I like his clean code and assert statements because they clearly indicate what his expectations are about the state of the program at that point.

On AminAnvariSQRT decomposition, 6 years ago
0

Another problem on SQRT Decomposition from Codeforces Trainings Season 3 Episode 7: Strange Queries

I always got something special from this community's member.

Are you expecting a magic wand or something? Do a google search and you'll easily find the answers.

On IAmNotGoodWhere is Rajat De?, 7 years ago
+21

Hello sir, Please tell me how to be an attention whore.

On himanshujaju0-1 BFS [Tutorial], 8 years ago
+8

Hi, You may also solve problem D from Codeforces #516 for practice.