This is check50, a command-line program with which you can check the correctness of your programs.
active 2023-08-15 → 2026-03-10 (UTC)
Activity over time
Daily event counts in the loaded window
Line chart, 939 days from 2023-08-15 to 2026-03-10. Pushes: 48 total, peak 6 in a day. Pull requests: 26 total, peak 2 in a day. Issues: 66 total, peak 5 in a day. Comments: 81 total, peak 6 in a day. Stars: 114 total, peak 2 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 |
|---|---|---|---|---|
| rongxin-liu | 62 | 20 | 8 | 16 |
| ivanharvard | 33 | 11 | 6 | 9 |
| bxngyn | 12 | 10 | 2 | 0 |
| curiouskiwi | 11 | 1 | 1 | 4 |
| dmalan | 10 | 0 | 1 | 4 |
| Makaze | 6 | 0 | 0 | 2 |
| goyalyashpal | 4 | 0 | 0 | 3 |
| AnderGI | 4 | 0 | 0 | 1 |
| dselevan | 4 | 0 | 0 | 3 |
| Amn-120 | 3 | 0 | 0 | 3 |
| caio-pavesi | 3 | 0 | 2 | 1 |
| Copilot | 3 | 0 | 0 | 2 |
| asokolsky | 3 | 0 | 0 | 2 |
| arc2419 | 3 | 0 | 0 | 2 |
| chriscarrollsmith | 3 | 0 | 0 | 1 |
| nighanxiety | 2 | 0 | 0 | 2 |
| Ortega1299 | 2 | 0 | 0 | 1 |
| mazdakdev | 2 | 0 | 2 | 0 |
| udan-jayanith | 2 | 0 | 0 | 0 |
| M1st3rfr10 | 2 | 0 | 0 | 1 |
Recent activity
Latest issues, pull requests and releases
- Pull request#395ivanharvard2026-02-25 06:28
- Pull request#394ivanharvard2026-02-25 06:22
- Issue comment#368ivanharvard2026-02-25 04:074.0.0
- Issue comment#384ivanharvard2026-02-23 20:19Truncation of full web results makes them less useful
- Issue comment#385rongxin-liu2026-01-04 17:42Rm attrs
- Pull request#385rongxin-liu2025-11-05 23:07
- Issue comment#391rongxin-liu2025-11-05 23:06Unable to authorize check50 (and submit50)?
- Pull request#390ivanharvard2025-10-04 23:52
- Issue comment#389rongxin-liu2025-09-28 14:03Unable to use Check50
- Issue#389rongxin-liu2025-09-28 14:03Unable to use Check50
- Issue comment#384Makaze2025-09-15 00:26Truncation of full web results makes them less useful
- Issue comment#387ivanharvard2025-09-06 17:42[check50_assert] Bad tokenizing logic causes check50_assert to run functions more than once.
- Issue#387ivanharvard2025-09-06 17:17[check50_assert] Bad tokenizing logic causes check50_assert to run functions more than once.
- Issue#354udan-jayanith2025-08-31 06:50Can't run this in Linux Mint and possibly in Ubuntu mint too
- Issue comment#368cmlsharp2025-08-31 02:144.0.0
- Issue comment#384bolt-blue2025-08-24 05:45Truncation of full web results makes them less useful
- Issue comment#384curiouskiwi2025-08-24 00:46Truncation of full web results makes them less useful
- Issue#384curiouskiwi2025-08-23 09:59Truncation of full web results makes them less useful
- Issue#383curiouskiwi2025-08-10 22:36Expecting EOF gives unfriendly error
- Issue comment#382DVESatGH2025-08-08 14:40Submission cancelled on Harvard CS50P course gateway
- Issue comment#382rongxin-liu2025-08-08 13:47Submission cancelled on Harvard CS50P course gateway
- Issue#382rongxin-liu2025-08-08 13:47Submission cancelled on Harvard CS50P course gateway
- Pull request#381rongxin-liu2025-08-08 03:01
- Pull request#381rongxin-liu2025-08-08 01:23
- Issue#380curiouskiwi2025-08-07 23:19Print entire traceback or handle gracefully if student's code crashes
Totals cover only the window loaded into ClickHouse and count events, not GitHub's lifetime totals — 114 stars here means stars gained during the window, not the repo's star count.