https://open.kattis.com/problem-sources/North%20Central%20Regionals%201997

source 0354d80b424d · match key open.kattis.com/problem-sources/north%20central%20regionals%201997 · all sources

live

https://open.kattis.com/problem-sources/North%20Central%20Regionals%201997

wayback

calendar of snapshots

roles

judge page

health

live checked 2026-11-03 — mentions year 1997±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-1997 judge page · Kattis — Kattis problem-sources page (export source "North Central Regionals 1997", 2026-11-02)

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.

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.