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I don't see the advantage of using an ArrayList here when a 2-dimensional int-Array would do just fine. The size of the array is given in the input, so there is no need to dynamically grow or shrink the list.
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Java Arraylist
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I don't see the advantage of using an ArrayList here when a 2-dimensional int-Array would do just fine. The size of the array is given in the input, so there is no need to dynamically grow or shrink the list.