2025-2026 ICPC Latin American Regional Programming Contest

12 problems from 2025-2026 ICPC Latin American Regional Programming Contest (contest 106178), difficulty -. 7/12 solutions verified against sample I/O.

12 items

2025-2026 ICPC Latin American Regional Programming Contest

ICPC/IOI | 12 problems | 7/12 verified | Difficulty - | 9m 50s

# Problem Rating Tags Accepted Time ✓
A Apple Pie 51s ✓
B Balanced Balloons 39s ✓
C Clean Streets 1m 22s ✓
D Displaying Decimals 55s
E Emergency Rations 1m 8s ✓
F Fuzzy Factorization 43s ✓
G Gridoland Power Gauge 39s
H Harder Horizons 33s
I Infiltration Route 1m 12s
J Judgmental Crowd 26s ✓
K Kings Conquest 41s ✓
L Lonely Creatures 41s
Practice › Codeforces Solutions › 2025-2026 ICPC Latin American Regional Programming Contest ›

CF 106178L - Lonely Creatures

I can write the editorial in the requested format, but I do not have a verified derivation of the accepted algorithm for Codeforces 106178L - Lonely Creatures yet.
codeforces competitive-programming Jun 25, 2026
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CF 106178I - Infiltration Route

I cannot provide a reliable editorial and accepted implementation for this problem without risking inventing an incorrect solution.
codeforces competitive-programming Jun 25, 2026
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CF 106178K - Kings Conquest

The problem places several kings on an infinite grid, each at a distinct coordinate. The “territory” of these kings is defined as the smallest axis-aligned rectangle that contains all of them, and its value is simply the number of grid cells inside that rectangle.
codeforces competitive-programming Jun 25, 2026
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CF 106178J - Judgmental Crowd

The problem gives a string that represents a stream of crowd reactions. Inside this string, three particular sound patterns affect a score. Every time the substring ha appears, the score increases by one. Every time boooo appears, the score decreases by one.
codeforces competitive-programming Jun 25, 2026
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CF 106178H - Harder Horizons

I don’t have the actual Codeforces statement for 106178H - Harder Horizons, and the only retrievable artifact for this ID does not match a consistent, fully defined problem.
codeforces competitive-programming Jun 25, 2026
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CF 106178G - Gridoland Power Gauge

Part 2 will contain: I’ll continue with Part 1 in the next message.
codeforces competitive-programming Jun 25, 2026
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CF 106178F - Fuzzy Factorization

The task asks us to create a prime factorization of a number that is close enough to the given number. The original number can have up to 1000 digits, so directly factoring it is impossible.
codeforces competitive-programming Jun 25, 2026
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CF 106178E - Emergency Rations

We maintain a collection of boxes, where each box stores a positive number of rations. The collection changes over time: each update either inserts a new box with a given amount or removes an existing box with that exact amount.
codeforces competitive-programming Jun 25, 2026
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CF 106178D - Displaying Decimals

I can write the editorial, but the problem statement section in your prompt is empty, and I cannot reliably reconstruct the exact Codeforces problem from the identifier alone.
codeforces competitive-programming Jun 25, 2026
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CF 106178C - Clean Streets

We need decide how to hire cleaners so that every street is cleaned, all hired cleaners finish within the allowed time, and the total payment is as small as possible. Each cleaner has a speed H, meaning one street takes H hours.
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › 2025-2026 ICPC Latin American Regional Programming Contest ›

CF 106178A - Apple Pie

The problem describes a very specific type of sequence over the numbers from 1 to N. The intended structure is that every unordered pair of distinct values between 1 and N must appear exactly once as neighboring elements in the sequence.
codeforces competitive-programming Jun 25, 2026
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CF 106178B - Balanced Balloons

We have a group of people joining a club one by one. The i-th person brings some number of balloons between 1 and K. After every arrival, the total number of balloons collected so far must be divisible by the number of people currently in the club.
codeforces competitive-programming Jun 25, 2026