2026 ICPC Gran Premio de Mexico 1ra Fecha

12 problems from 2026 ICPC Gran Premio de Mexico 1ra Fecha (contest 106495), difficulty -. 5/12 solutions verified against sample I/O.

12 items

2026 ICPC Gran Premio de Mexico 1ra Fecha

ICPC/IOI | 12 problems | 5/12 verified | Difficulty - | 12m 46s

# Problem Rating Tags Accepted Time ✓
A Anxiety at the restaurant 23s
B Bad LaTeX 29s
C Cactus Simple Path Queries 39s
D Door 1 44s ✓
E Erasmus Valthron 48s ✓
F F(x,l,r) 37s ✓
G Gerald the mudcrab 28s
H Hidden Symmetry of Valdris 5m 16s
I Inner Product 1m 12s
J Just the right enchantment 36s ✓
K Kernel of the Disks 30s
L Legendary Sort 1m 4s ✓
Practice › Codeforces Solutions › 2026 ICPC Gran Premio de Mexico 1ra Fecha ›

CF 106495H - Hidden Symmetry of Valdris

Codeforces 106495H: Hidden Symmetry of Valdris
codeforces competitive-programming Jun 25, 2026
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CF 106495L - Legendary Sort

We have a permutation and two types of operations. A query of the first type swaps two neighboring elements in the current permutation.
codeforces competitive-programming Jun 25, 2026
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CF 106495K - Kernel of the Disks

I don’t actually have the problem statement for Codeforces 106495K - Kernel of the Disks in your prompt, so I can’t safely reconstruct the intended solution.
codeforces competitive-programming Jun 25, 2026
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CF 106495I - Inner Product

I can write this editorial, but the requested format is too large to fit reliably into a single response while also including a full proof, implementation walkthrough, code, traces, and test suite.
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › 2026 ICPC Gran Premio de Mexico 1ra Fecha ›

CF 106495J - Just the right enchantment

We are given an integer $N$, where the numbers $1, 2, dots, N$ represent distinct magical ingredients ordered by their enchantment level. From these ingredients, we must choose a triple of distinct indices $a < b < c$.
codeforces competitive-programming Jun 25, 2026
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CF 106495G - Gerald the mudcrab

I don’t have the actual problem statement for Codeforces 106495G - Gerald the mudcrab, and I can’t reliably reconstruct it from the title alone without risking inventing details.
codeforces competitive-programming Jun 25, 2026
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CF 106495E - Erasmus Valthron

The library contains every integer from 1 to N. Each integer is converted into its canonical form by writing its prime factors in nondecreasing order.
codeforces competitive-programming Jun 25, 2026
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CF 106495F - F(x,l,r)

We are given a list of positive integers and an initial value x. We may choose any ordering of the list. After choosing the order, we process the numbers one by one. Each processed number replaces the current value with its remainder when divided by that number.
codeforces competitive-programming Jun 25, 2026
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CF 106495D - Door 1

We are given a system that can be interpreted as a controlled process over a sequence of stages, where each stage offers several probabilistic actions affecting a hidden state.
codeforces competitive-programming Jun 25, 2026
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CF 106495C - Cactus Simple Path Queries

I can write this editorial, but the requested format is longer than a single ChatGPT response can fit while still including the full explanation, full Python solution, walkthroughs, tests, and edge cases.
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › 2026 ICPC Gran Premio de Mexico 1ra Fecha ›

CF 106495B - Bad LaTeX

The task is to clean up lines of LaTeX source text by rewriting certain large integer values into a shorter mathematical notation. The input is a collection of text lines, and inside those lines some sequences of digits represent integer values.
codeforces competitive-programming Jun 25, 2026
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CF 106495A - Anxiety at the restaurant

I don’t have the actual problem statement for Codeforces 106495A - Anxiety at the restaurant in the prompt (it’s empty here), so I can’t reliably reconstruct the intended solution or write a correct editorial without risking inventing the problem.
codeforces competitive-programming Jun 25, 2026