Hackerrank Solutions

A milling machine in a manufacturing facility has a tool change system. The tool changer holds n tools and some duplicate tools may be included. The operator must move through the tools one

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A data analyst recently joined HackerRank as an intern. As an initial task, data for n days is provided to the intern. Then, updates are performed on the data, where each update is

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In an astronomy board game, N planets in an imaginary universe do not follow the normal law of gravitation. All the planets are positioned in a row. The planetary system can be in

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