This repository contains design and implementation of fundamental data structures and algorithms.
active 2023-08-15 → 2026-04-09 (UTC)
Activity over time
Daily event counts in the loaded window
Line chart, 969 days from 2023-08-15 to 2026-04-09. Pushes: 78 total, peak 10 in a day. Pull requests: 78 total, peak 7 in a day. Issues: 28 total, peak 6 in a day. Comments: 121 total, peak 14 in a day. Stars: 77 total, peak 7 in a day.
- Pushes
- Pull requests
- Issues
- Comments
- Stars
Stars, PRs, issues and forks are under-captured in the later part of this window. GH Archive progressively stopped capturing non-push events during 2026 — −95% or worse by the end of the window. Every series here except Pushes fades for that reason, so a decline above reflects the archive, not this repository. Pushes stay reliable throughout, so read them, and the contributor counts derived from them, as the real signal. Data health has the measurements.
Top contributors
Pushes, PRs, issues, reviews and comments — stars and forks excluded, so this is contribution rather than popularity
| Contributor | Contributions | Pushes | PRs | Comments |
|---|---|---|---|---|
| 4ndrelim | 269 | 66 | 36 | 80 |
| euchangxian | 56 | 6 | 9 | 19 |
| yeoshuheng | 28 | 1 | 9 | 9 |
| junnengsoo | 28 | 3 | 17 | 3 |
| kaitinghh | 25 | 1 | 3 | 10 |
| Suf42 | 3 | 1 | 2 | 0 |
| ama-chi | 1 | 0 | 1 | 0 |
| tckeong | 1 | 0 | 0 | 0 |
| owenong1 | 1 | 0 | 1 | 0 |
Recent activity
Latest issues, pull requests and releases
- Pull request#934ndrelim2026-04-09 20:31
- Issue#484ndrelim2025-02-10 16:08Lecture Implementation
- Issue#514ndrelim2025-02-10 16:08RB tree
- Issue#294ndrelim2025-02-10 16:08Double hashing for HashSet
- Issue comment#444ndrelim2024-09-26 17:20Add Dijkstra's Algorithm
- Pull request#444ndrelim2024-09-26 17:20
- Pull request#794ndrelim2024-09-26 17:20
- Issue comment#794ndrelim2024-09-26 17:20feat: Implement segment tree
- Pull request#84Suf422024-08-20 12:57
- Pull request#84Suf422024-08-14 03:23
- Issue comment#834ndrelim2024-04-29 16:56AVL Tree delete return wrong node
- Issue#834ndrelim2024-04-29 16:56AVL Tree delete return wrong node
- Issue#32junnengsoo2024-04-16 16:29MST
- Issue comment#80junnengsoo2024-04-16 16:29feat: Branch mst adjmatrix
- Pull request#80junnengsoo2024-04-16 16:29
- Issue comment#834ndrelim2024-04-16 08:23AVL Tree delete return wrong node
- Issue#74ndrelim2024-04-16 08:21Fix MST time complexity
- Issue#334ndrelim2024-04-16 08:17Orthogonal Range Searching
- Issue comment#474ndrelim2024-04-16 08:16Checkstyles Completion & Profiles.md
- Issue#474ndrelim2024-04-16 08:16Checkstyles Completion & Profiles.md
- Issue#83tckeong2024-04-15 18:46Delete return wrong node
- Issue comment#804ndrelim2024-04-09 16:27feat: Branch mst adjmatrix
- Pull request#82junnengsoo2024-04-09 15:50
- Pull request#82junnengsoo2024-04-08 15:46
- Pull request#81junnengsoo2024-04-06 16:14
Totals cover only the window loaded into ClickHouse and count events, not GitHub's lifetime totals — 77 stars here means stars gained during the window, not the repo's star count.