Counting Matrices
Given a natural number N and a prime p, let’s define a special set Zp​={0,1,2,…,p−1}. Now count the ...
Pudding and Coins
Pudding is playing a game that has n levels. There are a total of n(n+1)/2 coins spread out among th...
GCD, Divisor, Count!
I like short statements and you should too so here's the statement without further ado You are give...
Predict The Frequency
Luis was sleeping. He suddenly woke up with three positive integers N, M and X. He told his younger ...
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