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Given an array of integers, find the pair of adjacent elements that has the largest product and return that product.

Example

For inputArray = [3, 6, -2, -5, 7, 3], the output should be adjacentElementsProduct(inputArray) = 21.

7 and 3 produce the largest product.

Hints

• None

Input/Output

• [time limit] 4000ms (js)
• [input] array.integer inputArray

An array of integers containing at least two elements.

Guaranteed constraints:

2 ≤ inputArray.length ≤ 10, -1000 ≤ inputArray[i] ≤ 1000.

• [output] integer

The largest product of adjacent elements.