https://codeforces.com/gym/101409

source d28a6fdf84cc · match key codeforces.com/gym/101409 · all sources

live: https://codeforces.com/gym/101409
wayback: calendar of snapshots
roles: problem set
health: changed checked 2026-11-03 — snapshot similarity 0.47
changed: same place, drifted content (30–75% similar to the snapshot, never mentions the year, or a JS shell / login wall)
referenced by: west-neerc-2010 problem set as of 2017-07-06 05:24

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.

2017-07-06 05:24 wayback held d28a6fdf84cc@20170706052436

wayback: snapshot nearest 2017-07-06 05:24
artifacts: problemset
referenced by: west-neerc-2010 problem set

contest	artifact	fetched	via	fetched from	type	size	sha256	path	links
west-neerc-2010	problemset	2026-11-02 15:41	wayback	https://web.archive.org/web/20170706052436id_/https://codeforces.com/gym/101409	text/html	95424	`4b5f3981ae0c6002`	west-neerc/west-neerc-2010/problemset/20170706-wayback-799785f7/page.html	raw

2026-11-02 15:41 live held d28a6fdf84cc@20261102154134

wayback: snapshot nearest 2026-11-02 15:41
artifacts: problemset

contest	artifact	fetched	via	fetched from	type	size	sha256	path	links
west-neerc-2010	problemset	2026-11-02 15:41	live	https://codeforces.com/gym/101409	text/html	113353	`78768fadf0b61c37`	west-neerc/west-neerc-2010/problemset/20261102-live-1bd75fef/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 0.47
2026-11-03	live	content	changed: snapshot similarity 0.47