pseudocode for 3 problems

Question

Laramie Park District has files of participants in its summer and winter programs this year.Each file is in participant ID number order and contains additional fields for first name, last name, age and class taken (e.g. Beginning Swimming).



A. Design the logic for a program that merges the files for summer and winter programs to create a list of the first and last names of all participants for the year.



B. Modify the program so that if a participant has more than one record, you output the participant's name only once.



C. Modify the program so that if a participant has more than one record, you output the name only once, but you also output the count of the total number of classes the participant has taken.

Answer 1

A: The participant IDs are in order in 2 files.  This is basically asking for a merge sort.  I'd read all of 1 file into an array of structs, all of the 2nd file into another array of structs, then since they're in order, set counter1 and counter2 to zero, and write whoever has the lowest ID num between arr1[counter1] and arr2[counter2] and advance the counter