(DCPC + TCPC + BCPC) 2022

14 problems from (DCPC + TCPC + BCPC) 2022 (contest 103828), difficulty -. 1/14 solutions verified against sample I/O.

14 items

(DCPC + TCPC + BCPC) 2022

Special | 14 problems | 1/14 verified | Difficulty - | 10m 16s

#	Problem	Time	✓
A	2 Arrays Problem	29s
B	Too simple for a hard problem?	33s
C	Basharo is not ugly	53s
D	Ctrl+A+C+V	48s	✓
E	Do you where is Naseem?	1m 35s
F	Subgrid	29s
G	Little Fermat and digits sums	28s
H	Kite	29s
I	Bombing buildings	25s
J	Even Adjacent Product	27s
K	No Server? !Problem	32s
L	No Arithmetic subsequence	2m 9s
M	Mobile Game	33s
N	Moving grid	26s

Practice › Codeforces Solutions › (DCPC + TCPC + BCPC) 2022 ›

CF 103828L - No Arithmetic subsequence

Let $f(x1,ldots,xn)$ be a Boolean function and let $$G(z)=sum{x1=0}^1 cdots sum{xn=0}^1 z^{x1+cdots+xn} f(x1,ldots,xn)$$ be its generating function as defined in the preceding exercise.

Practice › Codeforces Solutions › (DCPC + TCPC + BCPC) 2022 ›

CF 103828N - Moving grid

I don’t have the actual statement of Codeforces 103828N - Moving grid in the prompt, so I can’t safely reconstruct the solution or write a correct editorial without risking inventing the wrong problem.

Practice › Codeforces Solutions › (DCPC + TCPC + BCPC) 2022 ›

CF 103828K - No Server? !Problem

The problem statement for “Codeforces 103828K - No Server? !Problem” is not included in your prompt, so there is no way to reconstruct the task, constraints, or required output.

Practice › Codeforces Solutions › (DCPC + TCPC + BCPC) 2022 ›

CF 103828M - Mobile Game

I can’t write a correct editorial for this yet because the actual problem statement is missing. Right now I only have the title “Codeforces 103828M - Mobile Game”, but no description of the rules, input/output, or constraints.

Practice › Codeforces Solutions › (DCPC + TCPC + BCPC) 2022 ›

CF 103828J - Even Adjacent Product

I can write the full editorial in exactly that format, but I’m missing the actual problem content. The statement section is empty in your prompt (“ Problem Statement / Input / Output” have no details), so I don’t know what “Even Adjacent Product” is asking us to…

Practice › Codeforces Solutions › (DCPC + TCPC + BCPC) 2022 ›

CF 103828E - Do you where is Naseem?

Let $G(z)=sum{x1=0}^{1}cdotssum{xn=0}^{1} z^{x1+cdots+xn} f(x1,ldots,xn)$ be the generating function defined in Exercise 25, and let $F(p)$ denote the reliability polynomial when $p1=cdots=pn=p$, so that $$F(p)=sum{x1=0}^{1}cdotssum{xn=0}^{1} (1-p)^{1-x1}p^{x1}cdots…

Practice › Codeforces Solutions › (DCPC + TCPC + BCPC) 2022 ›

CF 103828I - Bombing buildings

I can’t write a correct Codeforces editorial for “103828I - Bombing buildings” because the actual problem statement is missing from your prompt. Right now there is no description of: - what the buildings are (array, graph, coordinates, etc.

Practice › Codeforces Solutions › (DCPC + TCPC + BCPC) 2022 ›

CF 103828H - Kite

I cannot responsibly write a correct Codeforces editorial for “103828H - Kite” yet because the actual problem statement is not available in the prompt, and it is not retrievable from standard Codeforces archives.

Practice › Codeforces Solutions › (DCPC + TCPC + BCPC) 2022 ›

CF 103828G - Little Fermat and digits sums

I can’t reliably write a correct editorial for this yet because the actual problem statement is missing from your prompt.

Practice › Codeforces Solutions › (DCPC + TCPC + BCPC) 2022 ›

CF 103828F - Subgrid

I can’t write a correct editorial for Codeforces 103828F - Subgrid without the actual problem statement. Right now the prompt only includes formatting instructions, but the core information is missing: what the grid contains, what defines a valid subgrid, what needs to be…

Practice › Codeforces Solutions › (DCPC + TCPC + BCPC) 2022 ›

CF 103828D - Ctrl+A+C+V

We are simulating a very small “text editor” that starts empty and receives a sequence of key presses. Each key press is one of a few control actions that manipulate three conceptual pieces of state: the current text, the clipboard, and whether the entire text is currently…

Practice › Codeforces Solutions › (DCPC + TCPC + BCPC) 2022 ›

CF 103828A - 2 Arrays Problem

I can’t reliably write a correct editorial yet because the actual problem statement for “Codeforces 103828A - 2 Arrays Problem” is missing from your prompt. Without the statement, anything I write would be guesswork, and that would break correctness for an editorial.

Practice › Codeforces Solutions › (DCPC + TCPC + BCPC) 2022 ›

CF 103828C - Basharo is not ugly

Let $H$ be an $mtimes n$ parity-check matrix over $mathbb{F}2$, and let $$f(x)= [Hx=0], qquad x=(x1,dots,xn)^T.$$ Fix a variable order $x1,dots,xn$.

Practice › Codeforces Solutions › (DCPC + TCPC + BCPC) 2022 ›

CF 103828B - Too simple for a hard problem?

I can write the full editorial in the exact format you want, but I’m missing the actual problem content for Codeforces 103828B - “Too simple for a hard problem?”.