Adjacency Hatred

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### Read problems statements in [Russian](https://www.codechef.com/download/translated/COOK133/russian/ADJHATE.pdf) and [Bengali](https://www.codechef.com/download/translated/COOK133/bengali/ADJHATE.pdf). An array is called *lovely* if the sum of absolute differences of each adjacent pair of elements is odd; formally, the array $S$ of size $m$ is lovely if $\sum_{i=1}^{m-1}$ $|S_i-S_{i+1}|$ is od

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solution.cppC++17

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