Queries!

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Given $Q$ queries make a vector and perform the following functions. For each query you'll be given a single integer $K$. If: - $K=1$: Print The last element of the vector. - $K=2$: Add an element $X$ to the vector. - $K=3$: Delete the last element from the vector. ###Input: The first line of the input will have a single integer $Q$ i,e the no of queries. $Q$ lines follow each having an intege

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solution.cppC++17

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