KingInBlack

Competitive programming & Math.

#kyopro

[KingInBlack @EmperorKnull]

Last tweet. Will tweet next only if I improve significantly in the next few months.

GLHF everyone. :)

KingInBlack took 2333rd place in AtCoder Beginner Contest 382!
Performance: 1021
Rating: 907→920 (+13) :)
Updated highest rating!
#AtCoder #ABC382 https://t.co/FLyCLCCjUP

[KingInBlack @EmperorKnull]

Didn't wanna bother you but just wanted to confirm.

The category page is working fine at Atcoder-Tags @__Null_Null_ . But the other pages aren't (check, collect, graph, ranking etc.). And as a result the tampermonkey userscripts doesn't work as well.

[KingInBlack @EmperorKnull]

This was my 20th contest. Looks like if I don't go absolute ham with my cp training, I'm stuck here for the foreseeable future.

Ngl, a nice challenge to level up.

[KingInBlack @EmperorKnull]

KingInBlackさんのAtCoder Beginner Contest 378での成績：2792位
パフォーマンス：1042相当
レーティング：856→878 (+22) :)
Highestを更新しました！
#AtCoder #ABC378 https://t.co/3PAsCxNcgn

[KingInBlack @EmperorKnull]

After turning green, I spent 5 more ABC contests, (roughly 5-6 weeks) b/w 829-878. Couldn't even cross 900. 😶

[KingInBlack @EmperorKnull]

@yuusaan0926 F's a variant of dijkstra?

[KingInBlack @EmperorKnull]

dollarsign1time's replay of キーエンスプログラミングコンテスト2024（AtCoder Beginner Contest 374）

最大瞬間風速は 2677位 (43:46, abc374_d AC) だよ！
https://t.co/L8fOjN0jbG
#AtCoder_Replay

[KingInBlack @EmperorKnull]

dollarsign1time took 2910th place in KEYENCE Programming Contest 2024（AtCoder Beginner Contest 374）!
Performance: 1072
Rating: 829→858 (+29) :)
Updated highest rating!
#AtCoder #KEYENCEProgrammingContest2024（ABC374） https://t.co/RJJYSdKuci

[KingInBlack @EmperorKnull]

4 problems solved.
A & B : Simulate
C : DFS (Could also solve with bitmasks)
D : Bitmask + Next_Permutation
E : Binary Search on W, was close but couldn't solve it.

[KingInBlack @EmperorKnull]

dollarsign1time's replay of AtCoder Beginner Contest 373

最大瞬間風速は 938位 (01:10, abc373_a AC) だよ！
https://t.co/L8fOjMZLm8
#AtCoder_Replay

[KingInBlack @EmperorKnull]

#ABC373
The luck finally ran out.
Solve first three within 10 mins. And then kept struggling with D finally giving up. Tried with bfs, dfs, reverse edges, still nothing. Read E in b/w but mind was preoccupied with D.
So, negative delta today :(

[KingInBlack @EmperorKnull]

841 -> 829 (-12)

[KingInBlack @EmperorKnull]

Also, I couldn't prove that my solution would work in all cases. It happened to pass all the sample test cases, so I submitted and got AC.

So, a curated stack specific problem list would be highly appreciated.

[KingInBlack @EmperorKnull]

I managed to solve ABC372D. I didn't understand the written editorial or even the code in evima's video editorial. Just understood the concept that standing at pos i how many buildings can one see to the east. My code:

[けんちょん @drken1215]

AtCoder NoviSteps 上で、「スタック」の問題集を今作っている。

先日の ABC 372 D 問題の復習に役立ててほしいという問題集。

今週水曜日にリリース予定！！！！

ここから NoviSteps 一気に加速するよ！！
やっと、やりたいことができる環境が整った！！！！！！

[KingInBlack @EmperorKnull]

It took me 2 days to come up with this (not that I was thinking about this problem continuously) and at this point, I'm not confident if I can solve similar problems with stack.