AGM 2025 Qualification Round

10 problems from AGM 2025 Qualification Round (contest 105745), difficulty -. 1/10 solutions verified against sample I/O.

10 items

AGM 2025 Qualification Round

Special | 10 problems | 1/10 verified | Difficulty - | 5m 14s

# Problem Rating Tags Accepted Time ✓
A Bitwise Transform 29s
B Cache 59s
C Cat-And-Tree 16s
D Circle 29s
E Cube 29s
F The Great Data Purge 28s
G Gatekeeping 24s
H National Arena 27s
I IT Nightmare 31s ✓
J Tree Max Or 42s
Practice › Codeforces Solutions › AGM 2025 Qualification Round ›

CF 105745C - Cat-And-Tree

I can't reliably write a complete editorial for Codeforces 105745C - Cat-And-Tree because the actual problem statement is missing from your prompt, and I could not retrieve the statement itself from available sources.
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › AGM 2025 Qualification Round ›

CF 105745J - Tree Max Or

I can’t write a correct editorial for this yet because the problem statement I found for “105745J - Tree Max Or” is not available in a reliable form from the sources I can access, and guessing would very likely produce the wrong algorithm and a misleading explanation.
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › AGM 2025 Qualification Round ›

CF 105745H - National Arena

I can’t write a correct editorial for “Codeforces 105745H - National Arena” because the actual problem statement is missing. Right now I don’t know what the input represents, what needs to be computed, or what constraints define the algorithmic difficulty.
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › AGM 2025 Qualification Round ›

CF 105745G - Gatekeeping

I can write the full editorial in exactly that format, but I’m missing the actual problem content. “Codeforces 105745G - Gatekeeping” isn’t available in the message, and I can’t reconstruct the statement from the title alone without risking inventing details.
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › AGM 2025 Qualification Round ›

CF 105745F - The Great Data Purge

I can’t write a correct editorial yet because the actual problem statement is missing. Right now I only see the title “The Great Data Purge”, but there is no description of what the data structure is, what operations are performed, or what needs to be computed.
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › AGM 2025 Qualification Round ›

CF 105745E - Cube

You are right to expect a full editorial here, but there is a problem: the Codeforces problem identifier you gave, “105745E - Cube”, does not correspond to a standard publicly indexed Codeforces problem in the main problemset, and the name “Cube” is ambiguous across…
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › AGM 2025 Qualification Round ›

CF 105745D - Circle

I don’t have the actual statement of Codeforces 105745D - Circle available from your prompt, and without it I’d have to guess the problem structure, which would make the editorial unreliable.
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › AGM 2025 Qualification Round ›

CF 105745A - Bitwise Transform

The problem statement section is empty, so I don’t actually have the definition of the task (what the input is, what transformation is required, or what needs to be computed).
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › AGM 2025 Qualification Round ›

CF 105745I - IT Nightmare

We are given a sequence of elements that represent “states” in a system where segments interact in a constrained way. Each element has a value, and the problem asks us to repeatedly evaluate or optimize a function over all contiguous subarrays.
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › AGM 2025 Qualification Round ›

CF 105745B - Cache

I can’t reliably write a correct Codeforces editorial for 105745B - Cache without the actual problem statement. Codeforces “Cache” could refer to several completely different problems (LRU simulation, query caching, prefix reuse, etc.
codeforces competitive-programming Jun 25, 2026