https://codeforces.com/gym/100109

source dfd8244b391e · match key codeforces.com/gym/100109 · all sources

live: https://codeforces.com/gym/100109
wayback: calendar of snapshots
roles: problem set
health: changed checked 2026-11-03 — snapshot similarity 0.71
changed: same place, drifted content (30–75% similar to the snapshot, never mentions the year, or a JS shell / login wall)
referenced by: south-russia-2012 problem set as of 2022-08-23 18:17

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.

2022-08-23 18:17 wayback held dfd8244b391e@20220823181717

wayback: snapshot nearest 2022-08-23 18:17
artifacts: problemset
referenced by: south-russia-2012 problem set

contest	artifact	fetched	via	fetched from	type	size	sha256	path	links
south-russia-2012	problemset	2026-11-02 15:39	wayback	https://web.archive.org/web/20220823181717id_/https://codeforces.com/gym/100109	text/html	88896	`0bd21624c7e85c1a`	south-russia/south-russia-2012/problemset/20220823-wayback-2e06ca66/page.html	raw

2026-11-02 15:39 live held dfd8244b391e@20261102153928

wayback: snapshot nearest 2026-11-02 15:39
artifacts: problemset

contest	artifact	fetched	via	fetched from	type	size	sha256	path	links
south-russia-2012	problemset	2026-11-02 15:39	live	https://codeforces.com/gym/100109	text/html	96053	`6843fceb87f47c7d`	south-russia/south-russia-2012/problemset/20261102-live-649ddb09/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: snapshot similarity 0.71
2026-11-03	live	content	changed: snapshot similarity 0.71