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All leaked interview problems are collected from Internet.

Given a **sorted** array of integers *nums* and integer values *a*, *b* and *c*. Apply a quadratic function of the form f(*x*) = *ax*^{2} + *bx* + *c* to each element *x* in the array.

The returned array must be in **sorted order**.

Expected time complexity: **O( n)**

**Example:**

nums = [-4, -2, 2, 4], a = 1, b = 3, c = 5, Result: [3, 9, 15, 33] nums = [-4, -2, 2, 4], a = -1, b = 3, c = 5 Result: [-23, -5, 1, 7]

**Credits:**

Special thanks to @elmirap for adding this problem and creating all test cases.

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