To remove an element at a given position in a sorted array, shift all the elements above it down one position.
void erase(int a[], int& n, int index) { // function: // Removes key at a[index], shifting other values down as necessary. // Updates number of elements in a. // parameters: // a inout array of values. // n inout number of values in a, a[0]..a[n-1] // index in position to delete. // returns: nothing // Move all elements up down position. i is destination. for (int i=index; i
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