Suppose we would like to swap the elements at index i and index j in an array. Does the following code work? If so, explain how. If not, explain why it fails.
What will be an ideal response?
```
array[i] = array[j];
array[j] = array[i];
```
This fails because the first step overwrites the element stored in array[i]. Therefore, the second line will
copy the value that is already stored at array[j] back into array[j].
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