States The 44 lines of the file PresStates. txt contain the names of the states that produced each of the first 44 presidents. The first four lines of the file contain the states Virginia, Massachusetts, Virginia, and Virginia. Write a program that deletes all duplications from the file and also displays the number of states that have produced presidents. PresStates. txt is as follows:
Virginia
Massachusetts
Virginia
Virginia
Virginia
Massachusetts
Tennessee
New York
Ohio
Virginia
Tennessee
Lousiana
New York
New Hampshire
Pennsylvannia
Illinois
Tennessee
Illinois
Ohio
Ohio
New York
New York
Indiana
New York
Ohio
New York
Ohio
New Jersey
Ohio
Massachusetts
California
New York
Missouri
Kansas
Massachusetts
Texas
California
Michigan
Georgia
California
Texas
Arkansas
Texas
Illinois
Outcome:
18 different states have produced presidents of the United States.