A program solution needed

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A program solution needed

I need a solve for this problem please !

a program that displays grade statistics. The program should read any number of grades (up to 100) and ends when the user enters -1, the program should reject any invalid grade. You should store the numbers in an array

The program displays the following: The number of grades The grade average The maximum grade The minimum grade The median grade, which is the middle grade after sorting the grades. If the number of grades is even, the median is the average of the middle two grades. The standard deviation, calculated as: standard deviation=root 1/n-1 sigma from i = 1 to N (xi-m)^2 , where xi : the grade i m : the average of grades N : the number of grades The number of passing grades (grade 50) The number of failing grades (grade < 50) An error message if the user enters an invalid grade ( grade > 100 or grade < 0).

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