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G. Mischievous Shooter Once the mischievous and wayward shooter named Shel found himself on a rectangular field of size $n \times m$, divided into uni 阅读全文
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F1. Smooth Sailing (Easy Version) The only difference between the two versions of this problem is the constraint on $q$. You can make hacks only if bo 阅读全文
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B - Arithmetic Progression Subsequence Problem Statement You are given a sequence $A$ of length $N$ consisting of integers between $1$ and $\textbf{10 阅读全文
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F - Usual Color Ball Problems Problem Statement You are given positive integers $N$, $M$, $K$, and a sequence of positive integers of length $N$, $(C_ 阅读全文
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D. Array Repetition Jayden has an array $a$ which is initially empty. There are $n$ operations of two types he must perform in the given order. Jayden 阅读全文
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F - Hop Sugoroku Problem Statement There is a row of $N$ squares labeled $1,2,\dots,N$ and a sequence $A=(A_1,A_2,\dots,A_N)$ of length $N$.Initially, 阅读全文
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F. Sum of Progression You are given an array $a$ of $n$ numbers. There are also $q$ queries of the form $s, d, k$. For each query $q$, find the sum of 阅读全文
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E. Happy Life in University Egor and his friend Arseniy are finishing school this year and will soon enter university. And since they are very respons 阅读全文
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制作地图 贝茜正在学习制作扫雷地图。 作为初学者，它打算先从简单的一维地图做起，它准备制作一张 $1 \times n$ 大小的地图（即 $1 \times n$ 的方格矩阵）。 地图中含有地雷的方格，应标记为 *；不含地雷的方格，应标记为一个 $0$ 到 $2$ 之间的数字，用来表示其相邻方格中的 阅读全文
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重新分装 有 $n$ 种零件，编号 $1 \sim n$。 第 $i$ 种零件的数量为 $a_i$。 有 $n$ 个箱子，编号 $1 \sim n$。 初始时，所有零件都装在第 $1$ 个箱子里。 我们希望将所有零件重新分装，使得最终对于每个 $i$（$1 \le i \le n$）都满足，所有的第 阅读全文