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Write a function that will swap two array elements. Your function will be passed three parameters: The first is a pointer to the beginning of the array. The second and third parameters are indexes to specify which pair of elements of the array should be swapped.

int swap (int *pointer, int index1, int index2);

Expected solution length: Around 7 lines.

Sample Input

r0=Data, r1=0, r2=2

Sample Output

[Two array elements swapped]

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