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You have a weighted undirected complete graph of $N$ nodes numbered from $0$ to $N-1$. The weight of...

You brought C chocolates to a party where there are A adults and K kids. You know that an adult will...

Given an array $A$ of size $n$, find how many tuple $(i, j, k)$ are there such that $1 ≤ i < j < k ≤...

Alice and Bob are playing a game on an array A of N integers. The game lasts for K rounds. Each roun...