Mystery2

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< Mystery2d

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Main Page → Exercises → C# → Solve an Exercise

Language/Type: C# arrays

Consider the following method:

public static void arrayMystery2(int[] a)
{
    for (int i = 1; i < a.Length - 1; i++)
    {
        a[i] = a[i - 1] - a[i] + a[i + 1];
    }
}

Indicate in the right-hand column what values would be stored in the array after the method arrayMystery executes if each integer array below is passed as a parameter to it.

`int[] a1 = {42, 42}; arrayMystery2(a1);`
`int[] a2 = {6, 2, 4}; arrayMystery2(a2);`
`int[] a3 = {7, 7, 3, 8, 2}; arrayMystery2(a3);`
`int[] a4 = {4, 2, 3, 1, 2, 5}; arrayMystery2(a4);`
`int[] a5 = {6, 0, -1, 3, 5, 0, -3}; arrayMystery2(a5);`

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Mystery2