hydrastuff's blog

By hydrastuff, 4 years ago, In Russian,

Уважаемые организаторы, не получается взять условия из системы.

 
 
 
 
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4 years ago, # |
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What is the 44th test in Div2 T like?

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    4 years ago, # ^ |
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    It's like 2, 2; 4, 4; 6, 6; ... 96, 96; 98, 98; 99; 100 shuffled randomly, and the answer is -1. The basic idea was to have almost all powers (but not all of them) have the same residue modulo some small number.