TAYSTUDIO operation notes · tool guides · tech/career · useful posts
7 Java modules that recur in Samsung-style simulation coding tests — 90° rotation, periodic boundaries, reverse direction, multi-key sort, BFS, spiral coords.
![[New Grad] Samsung Electronics Coding Test Review (Samsung Research / Innovation Center)](assets/posts/career-samsung-coding-test-review/cover.jpg)
5 attempts at the Samsung Research coding test — application timelines, exam environment, language restrictions, and lessons from each round.
Why does sample variance divide by n-1 instead of n? Two views — correcting bias from underestimation and degrees of freedom — reveal the essence of variance.
Understanding probability through three ideas — uncertainty, variability, and variance — plus the intuition for why variance measures distance from the mean.
![[Summit] AWS Summit Review](assets/posts/aws-summit-2024/cover.webp)
Field notes from AWS Summit Seoul 2024, sorting the booth trends into three buckets — generative-AI serving, multi-cloud CMP, and API gateway middleware.
How Twitter Snowflake makes 64-bit unique IDs that never collide across many servers — the 5-segment layout, a Java bit-operation build, and a 10,000 TPS test.
![[Admissions] KAIST Graduate Written Exam (Mechanical Engineering) — Review (1)](assets/posts/kaist-grad-mech-written-set1/cover.webp)
KAIST Mechanical Engineering grad school written exam (Aug 2019), Set 1 recap — five 2-hour problems across math, solids, dynamics, thermo, and fluids.
![[Admissions] KAIST Graduate Written Exam (Mechanical Engineering) — Review (2)](assets/posts/kaist-grad-mech-written-set2/cover.webp)
KAIST Mechanical Engineering grad school written exam (Aug 2019), Set 2 recap — five 2-hour problems: eigenvalues, strength design, dynamics, thermo, and N-S.
![[New Grad] SK AX (formerly C&C) - Coding Test & Interview (Final Acceptance) Review](assets/posts/career-sk-ax-newgrad-2023/cover.jpg)
A walkthrough of SK Inc. AX (formerly C&C) 2023 second-half new graduate SW hiring: the application, coding test, SKCT aptitude exam, and full-day interview.
![[New Grad] Hyundai Motor — CarCloud Role — Coding Test + 1st Interview (Rejected) Recap (2023 H1)](assets/posts/career-hyundai-carcloud-newgrad-2023/cover.jpg)
Hyundai Motor 2023 H1 new-grad CarCloud role recap — aptitude, AI interview (ViewInter), Softeer coding test (Java, 3 problems), and 1st interview. Rejected.