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G. Moving Platforms There is a game where you need to move through a labyrinth. The labyrinth consists of $n$ platforms, connected by $m$ passages. Ea 阅读全文
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F - Breakdown Problem Statement You are given a simple undirected graph consisting of $N$ vertices and $M$ edges. For $i = 1, 2, \ldots, M$, the $i$-t 阅读全文
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Minimize OR of Remaining Elements Using Operations You are given a 0-indexed integer array nums and an integer k. In one operation, you can pick any i 阅读全文
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D. Sasha and a Walk in the City Sasha wants to take a walk with his girlfriend in the city. The city consists of $n$ intersections, numbered from $1$ 阅读全文
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G. One-Dimensional Puzzle You have a one-dimensional puzzle, all the elements of which need to be put in one row, connecting with each other. All the 阅读全文
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D. Lonely Mountain Dungeons Once, the people, elves, dwarves, and other inhabitants of Middle-earth gathered to reclaim the treasures stolen from them 阅读全文