hello codeforces. some days ago i meet great problem — 1285F - Classical?. in this task we need to use the Mobius function. so. for me it was something new and interesting. could u give me some task, were i can also use that trick?
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the Mobius function
hello codeforces. some days ago i meet great problem — 1285F - Classical?. in this task we need to use the Mobius function. so. for me it was something new and interesting. could u give me some task, were i can also use that trick?
Rev. | Lang. | By | When | Δ | Comment | |
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Tsarist_Russia | 2020-04-12 12:26:44 | 253 | Initial revision (published) |
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