## Reverse First K Elements of a Queue

Source: GeeksForGeeks
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Tanjim's Personal Webpage & Blog

Source: GeeksForGeeks
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Source: GeeksForGeeks
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What is Encapsulation?
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Let $n$ be a natural number comprising $k$ digits. We know that a number $n$ has exactly $\floor{\log_{b}(k)} + 1$ digits in base $b$ [Source]...
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You are given a length $i$. You are asked to compute how many valid numbers of length $i$ are there. For example, if $i =...
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