2021 HDU Multi-University Training Contest 7

12 problems from 2021 HDU Multi-University Training Contest 7 (contest 103535), difficulty -. 1/12 solutions verified against sample I/O.

12 items

2021 HDU Multi-University Training Contest 7

Special | 12 problems | 1/12 verified | Difficulty - | 7m 42s

#	Problem	Time	✓
A	Fall with Fake Problem	2m 4s
B	Fall with Soldiers	31s
C	Fall with Trees	30s
D	Link with Balls	25s
E	Link with EQ	32s
F	Link with Grenade	28s
G	Link with Limit	29s
H	Smzzl with Greedy Snake	25s
I	Smzzl with Safe Zone	28s
J	Smzzl with Tropical Taste	25s
K	Yiwen with Formula	29s
L	Yiwen with Sqc	56s	✓

Practice › Codeforces Solutions › 2021 HDU Multi-University Training Contest 7 ›

CF 103535L - Yiwen with Sqc

We are given a string over lowercase letters. For every letter and every substring, we look at how many times that letter appears inside the substring, square that value, and add everything up.

Practice › Codeforces Solutions › 2021 HDU Multi-University Training Contest 7 ›

CF 103535K - Yiwen with Formula

The problem statement is missing, so there isn’t enough information to derive the solution, constraints, or even what the task is asking. Right now we only have the title “Yiwen with Formula”, but no description of inputs, outputs, or rules.

Practice › Codeforces Solutions › 2021 HDU Multi-University Training Contest 7 ›

CF 103535J - Smzzl with Tropical Taste

The problem content for “Codeforces 103535J - Smzzl with Tropical Taste” is currently empty, so there is nothing to reconstruct or analyze yet.

Practice › Codeforces Solutions › 2021 HDU Multi-University Training Contest 7 ›

CF 103535A - Fall with Fake Problem

Let $(a{n-1},dots,a1,a0)$ be elements of the ternary reflected Gray code, so consecutive tuples differ in exactly one coordinate by $+1$ or $-1$, with all entries in ${0,1,2}$. The full sequence runs through all $3^n$ ternary $n$-tuples.

Practice › Codeforces Solutions › 2021 HDU Multi-University Training Contest 7 ›

CF 103535I - Smzzl with Safe Zone

The problem statement you provided is incomplete, so there isn’t enough information to derive a correct solution or write a meaningful editorial. Right now we only have the title “Smzzl with Safe Zone” and empty input/output sections.

Practice › Codeforces Solutions › 2021 HDU Multi-University Training Contest 7 ›

CF 103535H - Smzzl with Greedy Snake

The problem statement is missing all meaningful content beyond the title, so there is no way to derive the intended model, constraints, or solution.

Practice › Codeforces Solutions › 2021 HDU Multi-University Training Contest 7 ›

CF 103535G - Link with Limit

I can’t reliably reconstruct the editorial yet because the actual statement of Codeforces 103535G - Link with Limit is missing from your prompt, and it is not uniquely identifiable from context.

Practice › Codeforces Solutions › 2021 HDU Multi-University Training Contest 7 ›

CF 103535F - Link with Grenade

I can’t write a correct Codeforces editorial from just the title “Link with Grenade” because the actual problem statement, constraints, and operations are missing.

Practice › Codeforces Solutions › 2021 HDU Multi-University Training Contest 7 ›

CF 103535E - Link with EQ

I can’t write a correct editorial for Codeforces 103535E - Link with EQ from what you provided because the actual problem statement is missing (input/output are empty in your message).

Practice › Codeforces Solutions › 2021 HDU Multi-University Training Contest 7 ›

CF 103535D - Link with Balls

I’m missing the actual problem content for Codeforces 103535D - Link with Balls. The statement section in your prompt is empty, so there’s no way to reconstruct the rules, input/output behavior, or constraints without guessing.

Practice › Codeforces Solutions › 2021 HDU Multi-University Training Contest 7 ›

CF 103535B - Fall with Soldiers

I can’t write a correct editorial for this yet because the actual problem content is missing. Right now I only see the title “Fall with Soldiers” with empty input and output sections, which isn’t enough to reconstruct the task.

Practice › Codeforces Solutions › 2021 HDU Multi-University Training Contest 7 ›

CF 103535C - Fall with Trees

I can’t reliably write an editorial from this because the actual problem content is missing. Right now, all that’s provided is the title “Fall with Trees”, but there is no statement, no input/output format, and no constraints.