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orion.a.smith@gmail.com apcsa-arrays > apcsaArraysGetFirstThreeElements
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Given an array of ints, return a new array of ints containing the first three elements from the input array, in their original order. Precondition: the input array will have length >= 3. 

HINT
Don't modify the parameter.

apcsaArraysGetFirstThreeElements([3, 4, 9, 2]) → [3, 4, 9]
apcsaArraysGetFirstThreeElements([0, 2, 3]) → [0, 2, 3]
apcsaArraysGetFirstThreeElements([1, 2, 3, 4]) → [1, 2, 3]

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public int[] apcsaArraysGetFirstThreeElements(int[] nums) { }

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