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.

Write a program to analyze student’s scores. each student’s id and 4 original test scores are saved in the attached file “student_id_scores.txt”. assume there are exactly 15 students in the class.• the program first opens the file, reads student’s ids and scores from the file and saves them in two arrays: o create a one-dimensional string array “ids” to store the student’s ids.o create a (parallel) two-dimensional int array “scores” to store student’s original test scores. this array has 5 columns, the original 4 test scores should be saved in the first 4 columns, and the last column will be used to save the average score after the calculation in next step.• the program then retrieves test scores from the array “scores”, calculates average score and determines the final letter grade based on the rules in the table below for each student. assume average score is integer value.average score = (score1 + score2 + score3 + score4) / 4average score letter grade90 ~ 100 a80 ~ 89 b70 ~ 79 c60 ~ 70 d0 ~ 60 f• the average score should be saved back in the 5th column of “scores” array.• create a new parallel one-dimensional char array “grades” to save each student’s letter grade.• program also needs to find the number of a, number of b, number of c, number of d and number of f grade. as well as the highest, lowest and average score of the class.• finally, program will display all of the original scores and all results on the computer screen using the format shown as the sample output below.• the program must contain at least the following functions: (1) a function “getscores” to read and store data into “ids” and “scores” arrays.(2) a function “analyzescores” to calculate student’s average score, determine letter grade, get the number of a, b, c, d and f, find the highest, lowest and average score of the class.(3) a function “displayresults” to display all of the results