You can write most of the rest of do_analysis
by copying statements
from the version of main
in Segment 627 with just one small
modification: Previously, serial numbers were read from the standard input
stream:
for (car_count = 0; cin >> input_buffer; ++car_count) {...}
Now, they are read from the stream attached to the named input file:
for (car_count = 0; car_stream >> input_buffer; ++car_count) {...}