Syrian Private Universities Collegiate Programming Contest 2023

14 problems from Syrian Private Universities Collegiate Programming Contest 2023 (contest 104426), difficulty -. 5/14 solutions verified against sample I/O.

14 items

Syrian Private Universities Collegiate Programming Contest 2023

Special | 14 problems | 5/14 verified | Difficulty - | 22m 56s

# Problem Rating Tags Accepted Time ✓
A G Game 1m 34s
B Permutation Tree 1m 30s
C SYPUCPC Problemsetting 1m 17s
D Bubble Sort !!? 1m 32s
E Stacked Pearls 1m 34s
F The Lazy Author 1m 28s
G GCD of Strings 1m 25s ✓
H Abo Abdo Smoothies 1m 22s
I Yazan's game 1m 17s ✓
J Dyscalculia 1m 8s ✓
K Divisibility 5m 4s
L Protecting The Earth 1m 21s ✓
M Kubernetes 55s ✓
N Ichthyophobia 1m 29s
Practice › Codeforces Solutions › Syrian Private Universities Collegiate Programming Contest 2023 ›

CF 104426K - Divisibility

We are given three integers for each query: a starting value a, a multiplier b, and a modulus target d. We are allowed to choose a non-negative integer k, and we want the smallest such k that makes two separate divisibility conditions true at the same time.
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CF 104426N - Ichthyophobia

We are given a sequence of independent observations, each representing a lake and the number of fish in it. For every lake, we must decide whether Kaitokid can safely visit it. Safety is defined in a very strict way: a lake is acceptable only when it contains no fish at all.
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CF 104426M - Kubernetes

We are given a set of machines, each with a fixed capacity, and a collection of applications where each application consists of several identical pods that must be placed onto these machines.
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CF 104426L - Protecting The Earth

We are placing points with integer coordinates on an infinite grid, and we want to fit at least $K$ distinct grid points inside or on the boundary of a circle centered at the origin.
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CF 104426J - Dyscalculia

We are dealing with sequences of length $n$ formed under a very specific rule. The sequence always starts at 1. At every next position, the value either continues the previous value plus one, or it resets back to 1.
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CF 104426H - Abo Abdo Smoothies

We are given two sequences of length $n$. The first sequence represents the smoothies Naseem actually bought, and the second sequence represents what each friend would ideally like to receive.
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CF 104426I - Yazan's game

We are given a rectangular grid of size $n times m$, where each cell contains either 0 or 1. In one move, we are allowed to choose exactly one cell that currently contains a 1. Once chosen, every cell that shares an edge or a corner with it becomes 1.
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CF 104426G - GCD of Strings

We are given a long decimal string and asked to cut it into several contiguous pieces. Every character of the string must belong to exactly one piece, and each piece is interpreted as a non-negative integer (leading zeros are allowed and the number is not normalized).
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CF 104426E - Stacked Pearls

We are working with an $n times n$ grid where each cell can either be empty or contain a pearl with an integer size. The grid is updated through a sequence of operations, where each operation either places a pearl in a cell, replaces an existing one, or removes it.
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CF 104426F - The Lazy Author

We are given a binary array and a fixed window size. In one move, we choose any contiguous segment of exactly $k$ elements and flip every value inside it, turning zeros into ones and ones into zeros.
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CF 104426D - Bubble Sort !!?

We are given a permutation p of size n. From this permutation we construct a large list of permutations: we take every permutation of 1..n that is lexicographically greater than or equal to p, sort them in lexicographic order, and concatenate them into a single sequence A.
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CF 104426A - G Game

We are given an array of integers. Two players select disjoint subsets of indices from this array. Abdulrahman is allowed to pick up to $P$ indices, and Hazem is allowed to pick up to $Q$ indices.
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CF 104426B - Permutation Tree

We are given a tree with a designated root. The task is to assign a permutation of the vertices, meaning each vertex receives a unique integer from 1 to n, so that labels strictly increase along every root-to-leaf direction.
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CF 104426C - SYPUCPC Problemsetting

We are given several independent test cases. In each one, we start with an array of problem difficulties. We are allowed to delete any subset of these values, but we must leave at least one element behind.
codeforces competitive-programming Jun 30, 2026