Consider the following fragment of C++ code, assuming that the constructor Sequence creates an empty sequence of integer objects. Recall that division between integers performs truncation (for example, 7/2 = 3).

Sequence seq;
for (int i = 0; i < n; i++)
seq.insertAtRank(i/2, i);

a. Assume that the for loop is executed 10 times, that is, n = 10, and show the sequence after each iteration of the loop.
b. Draw a schematic illustration of the sequence at the end of the for loop, for a generic number n of iterations.