Logical thinking

Revision en1, by 126378, 2020-03-05 12:57:15

In last two contest problem "C" was quite easy but how you guys come up to the logic?! I just cannot figured it out,Is there any good books or something which can improve my logical thinking about those math type problem? Problem link: In codecraft-20 1316C - Primitive Primes and in Ozon tech challenge 1305C - Kuroni and Impossible Calculation

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en1 English 126378 2020-03-05 12:57:15 330 Initial revision (published)