https://open.kattis.com/problem-sources/2020-2021%20North%20Central%20North%20America%20and%20Southern%20California%20ICPC%20Regional%20Contest

source 878f75b9e677 · match key open.kattis.com/problem-sources/2020-2021%20north%20central%20north%20america%20and%20southern%20california%20icpc%20regional%20contest · all sources

live

https://open.kattis.com/problem-sources/2020-2021%20North%20Central%20North%20America%20and%20Southern%20California%20ICPC%20Regional%20Contest

wayback

calendar of snapshots

roles

judge page

health

live checked 2026-11-03 — mentions year 2020±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

ncna-2020 judge page · Kattis as of 2022-06-28 13:17
socal-2020 judge page · Kattis — Kattis problem-sources page (export source "2020-2021 North Central North America and Southern California ICPC Regional Contest", 2026-11-02)

Snapshots (3)

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.

Checks (3)

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.