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Olympiad 2024
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NSUCRYPTO-2024
Problems of the 1st round (Section A)
Problems of the 1st round (Section B)
Problems of the 2nd round
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NSUCRYPTO-2023
Problems of the 1st round (Section A)
Problems of the 1st round (Section B)
Problems of the 2nd round
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NSUCRYPTO-2022
Problems of the 1st round (Section A)
Problems of the 1st round (Section B)
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Solutions of the problems
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Map
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NSUCRYPTO-2021
Problems of the 1st round (Section A)
Problems of the 1st round (Section B)
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NSUCRYPTO-2020
Problems of the 1st round (Section A)
Problems of the 1st round (Section B)
Problems of the 2nd round
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NSUCRYPTO-2019
Problems of the 1st round (Section A)
Problems of the 1st round (Section B)
Problems of the 2nd round
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NSUCRYPTO-2018
Problems of the 1st round (Section A)
Problems of the 1st round (Section B)
Problems of the 2nd round
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NSUCRYPTO-2017
Problems of the 1st round (Section A)
Problems of the 1st round (Section B)
Problems of the 2nd round
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NSUCRYPTO-2016
Problems of the 1st round (Section A)
Problems of the 1st round (Section B)
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NSUCRYPTO-2015
Problems of the 1st round (Section A)
Problems of the 1st round (Section B)
Problems of the 2nd round
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NSUCRYPTO-2014
Problems of the 1st round (Section A)
Problems of the 1st round (Section B)
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First round 2020
Section B
Problems
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Prob. 1
Prob. 2
Prob. 3
Prob. 4
Prob. 5
Prob. 6
Prob. 7
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Problem 3
:
Additional information
Please note that the correct equality is n - 1 = 2^k * 3^l * m instead of n = 2^k * 3^l * m - 1.
alt:
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