2021 VI IQ PFO

8 problems from 2021 VI IQ PFO (contest 103286), difficulty -. 0/8 solutions verified against sample I/O.

8 items

2021 VI IQ PFO

Special | 8 problems | 0/8 verified | Difficulty - | 5m 57s

# Problem Rating Tags Accepted Time ✓
A \u0420\u0443\u0434\u043e\u043b\u044c\u0444 \u0438 \u041e\u0412\u0414 33s
B \u0420\u0443\u0434\u043e\u043b\u044c\u0444 \u0438 \u0433\u0435\u043d\u0435\u0440\u0430\u0442\u043e\u0440\u044b \u0442\u044c\u043c\u044b 2m 30s
C \u0420\u0443\u0434\u043e\u043b\u044c\u0444 \u0438 \u0437\u0434\u043e\u0440\u043e\u0432\u044b\u0439 \u043e\u0431\u0440\u0430\u0437 \u0436\u0438\u0437\u043d\u0438 30s
E \u0420\u0443\u0434\u043e\u043b\u044c\u0444 \u0438 \u0444\u043e\u043a\u0443\u0441\u044b 26s
F \u0420\u0443\u0434\u043e\u043b\u044c\u0444 \u0438 \u0420\u0443\u0434\u043e\u043b\u044c\u0444 35s
G \u0420\u0443\u0434\u043e\u043b\u044c\u0444 \u0438 \u0440\u0430\u0437\u0440\u0435\u0437\u044b 25s
H \u0420\u0443\u0434\u043e\u043b\u044c\u0444 \u0438 \u0434\u0432\u043e\u0438\u0447\u043d\u0430\u044f \u0437\u0430\u0433\u0430\u0434\u043a\u0430 \u041b\u0435\u043e\u043d\u0430\u0440\u0434\u043e 27s
I \u0420\u0443\u0434\u043e\u043b\u044c\u0444 \u0438 \u043f\u0440\u043e\u0432\u043e\u0434\u0430 31s
Practice › Codeforces Solutions › 2021 VI IQ PFO ›

CF 103286B - Рудольф и генераторы тьмы

An $(s,t)$-combination in dual form is a strictly decreasing sequence $bs b{s-1} cdots b1 ge 0,$ where ${b1,dots,bs}$ are exactly the positions of the $0$’s in a binary string of length $n=s+t$. Lexicographic order on tuples $(bs,dots,b1)$ compares entries from left to right.
codeforces competitive-programming Jul 3, 2026
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CF 103286I - Рудольф и провода

I’m missing the actual problem statement, and for Codeforces problems that makes it impossible to write a correct editorial without guessing. “103286I - Рудольф и провода” could correspond to several different tasks (graphs, geometry, wiring simulation, etc.
codeforces competitive-programming Jul 3, 2026
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CF 103286H - Рудольф и двоичная загадка Леонардо

The problem statement section is empty, so I don’t have the actual task (input/output definition, constraints, or rules) needed to write a correct Codeforces editorial.
codeforces competitive-programming Jul 3, 2026
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CF 103286G - Рудольф и разрезы

I don’t have the actual problem statement for Codeforces 103286G - “Рудольф и разрезы” in your message, so I can’t reliably reconstruct the task or derive the intended solution.
codeforces competitive-programming Jul 3, 2026
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CF 103286F - Рудольф и Рудольф

The problem statement is missing, so I can’t reliably reconstruct what 103286F (“Рудольф и Рудольф”) is asking. Send the full statement (or a link / screenshot text), and I’ll write the complete Codeforces-style editorial in the format you specified.
codeforces competitive-programming Jul 3, 2026
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CF 103286E - Рудольф и фокусы

The editorial can’t be written yet because the actual problem statement for “Codeforces 103286E - Рудольф и фокусы” is missing.
codeforces competitive-programming Jul 3, 2026
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CF 103286A - Рудольф и ОВД

I can’t write a correct editorial for that problem yet because the actual problem statement (input/output definition and rules) isn’t included.
codeforces competitive-programming Jul 3, 2026
Practice › Codeforces Solutions › 2021 VI IQ PFO ›

CF 103286C - Рудольф и здоровый образ жизни

The problem statement didn’t come through (the Input/Output sections are empty), so there isn’t enough information to reconstruct what CF 103286C is asking.
codeforces competitive-programming Jul 3, 2026