https://acpc21d1.kattis.com/contests/acpc21d1/problems

source d2facb173d34 · match key acpc21d1.kattis.com/contests/acpc21d1/problems · all sources

live
https://acpc21d1.kattis.com/contests/acpc21d1/problems
wayback
calendar of snapshots
roles
problem set
health
live checked 2026-11-03 — mentions year 2021±1 (no snapshot to compare)
live: the address still serves the contest-era content (identical or ≥75% similar to the near-contest snapshot, or mentions the contest year)
referenced by
alberta-2021 problem set
lethbridge-2021 problem set

Snapshots (2)

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 15:35 live held d2facb173d34@20261102153513

wayback
snapshot nearest 2026-11-02 15:35
artifacts
problemset
contestartifactfetchedviafetched fromtypesizesha256pathlinks
alberta-2021problemset 2026-11-02 15:35livehttps://acpc21d1.kattis.com/contests/acpc21d1/problemstext/html34490be2d38261989e20falberta/alberta-2021/problemset/20261102-live-96c3a6e6/page.htmlraw

2026-11-02 15:35 live held d2facb173d34@20261102153514

wayback
snapshot nearest 2026-11-02 15:35
artifacts
problemset
contestartifactfetchedviafetched fromtypesizesha256pathlinks
lethbridge-2021problemset 2026-11-02 15:35livehttps://acpc21d1.kattis.com/contests/acpc21d1/problemstext/html34490e680da70d0e0c4e2lethbridge/lethbridge-2021/problemset/20261102-live-96c3a6e6/page.htmlraw

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.

whenviaoutcomeevidence
2026-11-02livecontentlive: mentions year 2021±1 (no snapshot to compare)
2026-11-03livecontentlive: mentions year 2021±1 (no snapshot to compare)