The 2024 Sichuan Provincial Collegiate Programming Contest

12 problems from The 2024 Sichuan Provincial Collegiate Programming Contest (contest 105222), difficulty -. 9/12 solutions verified against sample I/O.

12 items

The 2024 Sichuan Provincial Collegiate Programming Contest

Special | 12 problems | 9/12 verified | Difficulty - | 25m 14s

# Problem Rating Tags Accepted Time ✓
A Reverse Pairs Coloring 1m ✓
B Link Summon 1m 21s ✓
C Black-White Cubic Lattice 1m 17s ✓
D L-Covering 5m 22s
E L-Covering Checker 48s ✓
F Isoball: 2D Version 5m 18s
G Function Query 46s ✓
H GG and YY's Stone Game 1m 26s ✓
I Container Scheduling 51s ✓
J Roman Numerals 58s ✓
K Element Reaction 49s ✓
L Beef Tripe in Soup Pot? 5m 18s
Practice › Codeforces Solutions › The 2024 Sichuan Provincial Collegiate Programming Contest ›

CF 105222L - Beef Tripe in Soup Pot?

Codeforces 105222L: Beef Tripe in Soup Pot?
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CF 105222K - Element Reaction

We are given a sequence of element usages, where each step applies one of at most 17 element types. When an element is used on a monster, it interacts with the current “active element” on the monster.
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CF 105222F - Isoball: 2D Version

Codeforces 105222F: Isoball: 2D Version
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CF 105222D - L-Covering

Codeforces 105222D: L-Covering
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CF 105222J - Roman Numerals

We are asked to represent a positive integer using a strange mixed numeral system built from two kinds of symbols. The first kind is the usual decimal digits from 0 to 9. Each digit has a given cost, and using it once in the representation costs that amount.
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CF 105222I - Container Scheduling

We are given a rectangular deck that acts as a fixed 2D container, with its bottom-left corner at the origin and top-right corner at $(l, h)$. Into this space, we must place a sequence of axis-aligned rectangular boxes.
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CF 105222H - GG and YY's Stone Game

We are given a pile of stones and two players who alternate turns, with GG moving first. On each move, a player removes either one or two stones from the pile. The player who cannot make a move loses.
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CF 105222G - Function Query

We are given a static array of integers. For each query, we are also given two numbers $a$ and $b$, which define a function on any value $x$: $$f(x) = (a oplus x) - b$$ where $oplus$ is bitwise XOR.
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CF 105222E - L-Covering Checker

We are given a grid where each cell contains a symbol describing how it participates in a tiling made of L-shaped triominoes. Each L-shape consists of a center cell marked C and three adjacent arms extending in the four cardinal directions, labeled U, D, L, and R.
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CF 105222B - Link Summon

We are given five types of spirits, indexed from 1 to 5, and we have a certain number of copies of each type. Each spirit of type i has a fixed intrinsic value i. A single operation, called a “summon”, chooses some subset of available spirits.
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CF 105222C - Black-White Cubic Lattice

We are given a 3D grid of cells with coordinates $(i, j, k)$. Each cell initially has a color, either black or white, and we are allowed to flip its color at a given cost.
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CF 105222A - Reverse Pairs Coloring

We are given a permutation of size $n$, and we look at every inversion pair in it. An inversion is a pair of positions $i < j$ where the value at $i$ is larger than the value at $j$.
codeforces competitive-programming Jun 24, 2026