Rutgers University Programming Contest Fall 2025 - Open Division
15 problems from Rutgers University Programming Contest Fall 2025 - Open Division (contest 106197), difficulty -. 4/15 solutions verified against sample I/O.
Rutgers University Programming Contest Fall 2025 - Open Division
Special | 15 problems | 4/15 verified | Difficulty - | 13m 30s
| # | Problem | Rating | Tags | Accepted | Time | ✓ |
|---|---|---|---|---|---|---|
| A | Hinge Arch | 23s | ||||
| B | Partition Addition | 29s | ||||
| C | Divisor Lattice | 52s | ✓ | |||
| D | Thomas Trade | 26s | ||||
| E | Connected Squares | 1m | ||||
| F | XOR Sorting | 59s | ||||
| G | Subsequence MEX II | 37s | ✓ | |||
| H | World Emperor | 25s | ||||
| I | Grid Coloring | 40s | ✓ | |||
| J | Lattice Triangles | 33s | ||||
| K | Chain of Suspicion | 5m 16s | ||||
| L | Not a Magic Square | 20s | ||||
| M | Cube Embedding | 30s | ||||
| N | Solvable Problem | 21s | ||||
| O | Stringmas | 39s | ✓ |
CF 106197K - Chain of Suspicion
Analyzing
CF 106197O - Stringmas
We are given a string consisting of lowercase letters. The core idea is that we are allowed to repeatedly apply a transformation on adjacent characters that effectively changes local structure of the string without caring about its literal form.
CF 106197M - Cube Embedding
I can write the editorial, but I do not have a verified derivation of the construction for this problem yet. The statement is an output-only geometric construction problem, and a plausible-looking explanation or Python solution would be misleading without a proof that the…
CF 106197N - Solvable Problem
Got it-but I’ll need the actual problem first. Please paste the full Codeforces problem statement (or at least the key parts: input/output format, constraints, and sample).
CF 106197L - Not a Magic Square
I don’t have the actual statement of Codeforces 106197L - Not a Magic Square available, and the problem name alone isn’t enough to reliably reconstruct the intended task.
CF 106197J - Lattice Triangles
I can write the editorial, but I need one missing piece first: the official constraints and intended solution details for Codeforces 106197J “Lattice Triangles” are not enough for me to produce a reliable accepted algorithm and implementation from the statement alone.
CF 106197I - Grid Coloring
We are given a grid problem that behaves less like a coloring task and more like a directed propagation system on a graph hidden inside a grid. Each cell of an $n times n$ grid contains a direction, either horizontal or vertical.
CF 106197H - World Emperor
Sure. Send me the Codeforces problem statement (or link, title, constraints, and examples), and I’ll write a detailed editorial in a competitive programming style.
CF 106197F - XOR Sorting
I can write the editorial, but I need the intended solution idea or an accepted implementation for Codeforces 106197F - XOR Sorting to make it accurate. The statement alone is not enough for me to reliably reconstruct the full constructive argument within the required format.
CF 106197G - Subsequence MEX II
We are given a decimal string for each test case, and we are asked to look at all integers that can be formed by deleting some digits from it while preserving order. Each such derived number is a subsequence of the original number in the digit sense.
CF 106197E - Connected Squares
I can write this editorial, but I need the exact intended solution details first. The statement alone is not enough to safely produce a correct editorial and accepted Python solution for this problem because the construction is the whole challenge, and I do not want to invent…
CF 106197C - Divisor Lattice
The problem revolves around the structure formed by all divisors of a given integer when ordered by divisibility.
CF 106197D - Thomas Trade
I can write the full editorial, but the actual problem statement for Codeforces 106197D - Thomas Trade is missing from the prompt.
CF 106197B - Partition Addition
I can write the full editorial in that format, but I’m missing the actual problem statement for Codeforces 106197B - Partition Addition.
CF 106197A - Hinge Arch
I can write the editorial, but I do not have enough information about the problem itself. The statement section in your prompt is empty, and the available public information only identifies that Codeforces 106197A - Hinge Arch exists, not the actual input, output, constraints…