You are given an array of integers and must compute the maximum difference between any item and any lower indexed smaller item for all the possible pairs, ie, for a given array a find the maximum value of all-ou for all i j where 0 si ... 10 Complete the 'maxDifference' function below. The function is expected to return an INTEGER. The function accepts INTEGER ARRAY a as parameter. 17 int maxDifference(vector int> a) { 21 int main(