Happy Subsets

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###Statement Chef is new to programming. One day, while he was playing with an Array, **A** of **N** integers, he found a **happy subset**. A subset of an array A is said to be happy if it has exactly **L** elements and the absolute difference between **Maximum and Minimum** number of the subset is **at most K**. ###Input Format The first line contains integers **N, L and K.** The next

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solution.cppC++17

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