2024-2025 ICPC Latin American Regional Programming Contest

12 problems from 2024-2025 ICPC Latin American Regional Programming Contest (contest 105505), difficulty -. 12/12 solutions verified against sample I/O.

12 items

2024-2025 ICPC Latin American Regional Programming Contest

ICPC/IOI | 12 problems | 12/12 verified | Difficulty - | 12m 56s

# Problem Rating Tags Accepted Time ✓
A Append and Panic! 53s ✓
B Biketopia's Cyclic Track 1m 5s ✓
C Cindy's Christmas Challenge 1m 27s ✓
D Diverse T-Shirts 1m 33s ✓
E Evereth Expedition 1m 14s ✓
F Finding Privacy 53s ✓
G Grand Glory Race 58s ✓
H Heraclosures 1m 14s ✓
I Inversion Insight 58s ✓
J Jigsaw of Shadows 55s ✓
K Kool Strings 50s ✓
L Latin Squares 56s ✓
Practice › Codeforces Solutions › 2024-2025 ICPC Latin American Regional Programming Contest ›

CF 105505C - Cindy's Christmas Challenge

We are given a fixed target composition: a sequence that consists of exactly R red balls followed by B blue balls. Think of it as a rigid template of length R + B. We also have a long string S made of three types of balls, red, blue, and green.
codeforces competitive-programming Jun 24, 2026
Practice › Codeforces Solutions › 2024-2025 ICPC Latin American Regional Programming Contest ›

CF 105505E - Evereth Expedition

We are given a sequence of length $N$ that is supposed to represent a complete visit order of all stations numbered from $1$ to $N$. Some entries are missing, shown as zeros, while the others are fixed and already distinct.
codeforces competitive-programming Jun 24, 2026
Practice › Codeforces Solutions › 2024-2025 ICPC Latin American Regional Programming Contest ›

CF 105505J - Jigsaw of Shadows

We are given a line, which we can think of as the x-axis. On this line there are several vertical people standing at distinct x-coordinates. Each person has a height, so you can think of each one as a vertical segment anchored on the line.
codeforces competitive-programming Jun 23, 2026
Practice › Codeforces Solutions › 2024-2025 ICPC Latin American Regional Programming Contest ›

CF 105505D - Diverse T-Shirts

We are given a set of N items, where each item represents a T-shirt model. Two models are considered incompatible if they share either the same text color or the same background color.
codeforces competitive-programming Jun 23, 2026
Practice › Codeforces Solutions › 2024-2025 ICPC Latin American Regional Programming Contest ›

CF 105505G - Grand Glory Race

We are given a weighted tree representing villages connected by roads. Every leaf village contains exactly one runner.
codeforces competitive-programming Jun 23, 2026
Practice › Codeforces Solutions › 2024-2025 ICPC Latin American Regional Programming Contest ›

CF 105505L - Latin Squares

We are given a sequence of operations applied to an unknown Latin square. A Latin square is an $N times N$ grid filled with numbers from $1$ to $N$, where each number appears exactly once in every row and in every column.
codeforces competitive-programming Jun 23, 2026
Practice › Codeforces Solutions › 2024-2025 ICPC Latin American Regional Programming Contest ›

CF 105505H - Heraclosures

The program is a directed acyclic graph of function calls. Each function has a base cost, and whenever it calls another function, that callee’s full execution cost is added immediately, and this effect propagates recursively through all further calls.
codeforces competitive-programming Jun 23, 2026
Practice › Codeforces Solutions › 2024-2025 ICPC Latin American Regional Programming Contest ›

CF 105505I - Inversion Insight

We are asked to reconstruct a permutation of the numbers from 1 to N given its position in a very specific ordering of all permutations. The ordering is not the usual lexicographic order.
codeforces competitive-programming Jun 23, 2026
Practice › Codeforces Solutions › 2024-2025 ICPC Latin American Regional Programming Contest ›

CF 105505B - Biketopia's Cyclic Track

We are given an undirected connected graph where every city has degree at least three and there is at most one road between any pair of cities.
codeforces competitive-programming Jun 23, 2026
Practice › Codeforces Solutions › 2024-2025 ICPC Latin American Regional Programming Contest ›

CF 105505K - Kool Strings

We are given a binary string and a threshold value $K$. The string is considered “bad” if it contains a run of $K$ or more identical consecutive characters, meaning a block like $0000$ when $K = 4$, or $111$ when $K = 3$.
codeforces competitive-programming Jun 23, 2026
Practice › Codeforces Solutions › 2024-2025 ICPC Latin American Regional Programming Contest ›

CF 105505F - Finding Privacy

We are given a row of $N$ identical toilets, all initially empty. People arrive one after another, and each person must choose a toilet that is currently empty and also has no occupied neighbor on either side.
codeforces competitive-programming Jun 23, 2026
Practice › Codeforces Solutions › 2024-2025 ICPC Latin American Regional Programming Contest ›

CF 105505A - Append and Panic!

We are given a single uppercase string that was produced by a two-step process. First, someone had an original string t. Then they created a second string by taking all distinct letters of t, sorting them alphabetically, and writing each letter once.
codeforces competitive-programming Jun 23, 2026