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abraskin@mbusd.org > sumFirstLast
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Return the sum of the first and last elements of an int array.


sumFirstLast([1, 2, 3, 4]) → 5
sumFirstLast([0, 2, 4, 6, 8, 10]) → 10
sumFirstLast([1, 2, 3, 5, 7, 9, 11, 13]) → 14

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public int sumFirstLast(int[] arr) { }

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