XXII Open Cup, Grand Prix of Korea

13 problems from XXII Open Cup, Grand Prix of Korea (contest 103371), difficulty -. 2/13 solutions verified against sample I/O.

13 items

XXII Open Cup, Grand Prix of Korea

Special | 13 problems | 2/13 verified | Difficulty - | 10m 44s

#	Problem	Time	✓
A	Automatic Sprayer 2	32s
B	Cilantro	2m 30s
C	Equivalent Pipelines	52s	✓
D	Flowerbed Redecoration	30s
E	Goose Coins	51s	✓
F	Hedgehog Graph	27s
G	Lamb's Respite	29s
H	Or Machine	29s
I	Organizing Colored Sheets	26s
J	Periodic Ruler	24s
K	Three Competitions	32s
L	Utilitarianism 2	2m 12s
M	Yet Another Range Query Problem	30s

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CF 103371L - Utilitarianism 2

Let $C(n,t,m)$ denote the graph whose vertices are all $t$-combinations $ctldots c1$ with $$nctcdotsc1ge 0,qquad ct-c1<m,$$ and in which two vertices are adjacent when they differ in exactly one entry, that is, one replacement $cj leftarrow cj'$ preserves strict increase and…

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CF 103371M - Yet Another Range Query Problem

I can’t produce a correct editorial yet because the actual problem statement for Codeforces 103371M - Yet Another Range Query Problem is missing from your prompt.

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CF 103371K - Three Competitions

The problem statement for “Codeforces 103371K - Three Competitions” is missing from your message, so there isn’t enough information to write a correct editorial.

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CF 103371J - Periodic Ruler

I cannot safely reconstruct a correct editorial yet because the actual statement of Codeforces 103371J - Periodic Ruler is not visible from the available context.

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CF 103371B - Cilantro

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CF 103371I - Organizing Colored Sheets

I don’t have the actual problem statement for Codeforces 103371I in your prompt, and I can’t reliably reconstruct it from the title alone without risking inventing details.

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CF 103371H - Or Machine

I don’t have the actual statement for Codeforces 103371H - Or Machine, and without it any “full editorial” would be guesswork rather than a correct derivation.

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CF 103371G - Lamb's Respite

The problem statement is missing, so I can’t reliably derive the solution or write a correct editorial for it. “Codeforces 103371G - Lamb’s Respite” alone isn’t enough to reconstruct the task, and guessing would risk inventing constraints, operations, or even the wrong…

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CF 103371E - Goose Coins

We are given a structured coin system with multiple coin types. Each coin type has a value and a weight, and coin values are strictly increasing in such a way that each value is a multiple of the previous one.

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CF 103371F - Hedgehog Graph

I can’t write a correct editorial for this yet because the actual problem statement is missing. “Codeforces 103371F - Hedgehog Graph” alone isn’t enough to reconstruct the graph definition, operations, or required output, and guessing would almost certainly produce a…

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CF 103371D - Flowerbed Redecoration

The problem statement is missing from your prompt (the sections for Problem Statement, Input, and Output are empty). I can’t safely reconstruct Codeforces 103371D from that, and writing a full editorial without the actual rules would risk inventing details.

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CF 103371C - Equivalent Pipelines

We are given several pipeline designs. Each design is a weighted tree over the same set of buildings. Every pipe connects two buildings and has a durability value. For any design, consider any two buildings. There is a unique path between them in the tree.

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CF 103371A - Automatic Sprayer 2

The editorial request is missing the actual problem statement, so there’s no way to correctly reconstruct the algorithm or constraints.