I would like to know how to solve CodeChef — Chef and Graph Queries online. I've solved this problem using an offline method.
My solution using MO's Algorithm: https://www.codechef.com/viewsolution/18109768
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Helvetic Coding Contest 2024 online mirror (teams allowed, unrated)
21:10:08
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Helvetic Coding Contest 2024 online mirror (teams allowed, unrated)
21:10:08
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It appears that qiancl has written an online solution to this problem.