Codility Test: Extracting common elements between two integer arrays in nLogn time

Question

Amr · Accepted Answer

public class Solution {
    // DO NOT MODIFY THE LIST. IT IS READ ONLY
    public ArrayList intersect(final List A, final List B) {
        int i = 0;
        int j = 0;
        ArrayList ans = new ArrayList();
        while (i B.get(j)) {
                j++;
            }
            else {
                i++;
            }
        }
        
        return ans;
    }
}

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