随笔分类 - AtCoder
摘要：E - Revenge of "The Salary of AtCoder Inc." Problem Statement Aoki, an employee at AtCoder Inc., has his salary for this month determined by an intege
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摘要：F - Negative Traveling Salesman Problem Statement There is a weighted simple directed graph with $N$ vertices and $M$ edges. The vertices are numbered
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摘要：F - Nim Problem Statement You are given integers $N,A_1,A_2,A_3$. Find the number, modulo $998244353$, of triples of positive integers $(X_1,X_2,X_3)$
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摘要：B - Arithmetic Progression Subsequence Problem Statement You are given a sequence $A$ of length $N$ consisting of integers between $1$ and $\textbf{10
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摘要：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_
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摘要：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,
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摘要：C - Not So Consecutive Problem Statement You are given an integer $N$. An integer sequence $x=(x_1,x_2,\cdots,x_N)$ of length $N$ is called a good seq
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摘要：F - Random Update Query Problem Statement You are given an integer sequence $A = (A_1, A_2, \ldots, A_N)$ of length $N$. We will perform the following
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摘要：E - Lucky bag Problem Statement AtCoder Inc. sells merchandise on its online shop. There are $N$ items remaining in the company. The weight of the $i$
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摘要：F - Palindrome Query Problem Statement You are given a string $S$ of length $N$ consisting of lowercase English letters.Process $Q$ queries described
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摘要：F - Apples Problem Statement There are apple trees lined up on a number line, and $N$ apples fall from the trees.Specifically, for each $1\leq i\leq N
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