CodingBat sumFirstLast

sumFirstLast

Given 2 arrays of ints, return a new array holding the sum of the first and last elements of two given arrays. If the length of one of the arrays is less than two, return an empty array.

sumFirstLast([], []) → []
sumFirstLast([1], [2]) → []
sumFirstLast([1, 2], [-1, -2]) → [0, 0]

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