https://qoj.ac/contest/1809
source 64081a3996b5 · match key qoj.ac/contest/1809 · all sources
- live
- https://qoj.ac/contest/1809
- wayback
- calendar of snapshots
- roles
- problem set
- health
- changed checked 2026-11-03 — never mentions year 2017±1 (no snapshot to compare)
changed: same place, drifted content (30–75% similar to the snapshot, never mentions the year, or a JS shell / login wall) - referenced by
- beijing-2017 problem set
Snapshots (1)
One entry per time this address is known at: Wayback snapshots we captured, our live fetches, and times the catalogue declares (as_of) without a capture. Each capture is our stored copy, with its provenance.
2026-11-02 15:32 live held 64081a3996b5@20261102153243
- wayback
- snapshot nearest 2026-11-02 15:32
- artifacts
- problemset
| contest | artifact | fetched | via | fetched from | type | size | sha256 | path | links |
|---|---|---|---|---|---|---|---|---|---|
| beijing-2017 | problemset | 2026-11-02 15:32 | live | https://qoj.ac/login | text/html | 12910 | 3854494117003be7 | beijing/beijing-2017/problemset/20261102-live-9fb9028b/page.html | raw |
Checks (2)
Every time this address was looked at and what came back. A check that found no content is a record of the attempt, not a snapshot.
| when | via | outcome | evidence |
|---|---|---|---|
| 2026-11-02 | live | content | changed: never mentions year 2017±1 (no snapshot to compare) |
| 2026-11-03 | live | content | changed: never mentions year 2017±1 (no snapshot to compare) |