Program has the subway system defined with appropriate data structures
Added variables for d & 0 lines, d & o stops & how to calc number of stops on same line
Cleaned up comments & what will be printed for d & o lines & stops variables
Fixed number_of_stops_same_line variable - needed actual name placeholders in indices
Added if else statement for if rider is on the same line
Trying to figure out statement for number_of_stops_switch_lines