Grading Students Solution in Javascript

by Travis Scott Lee

HackerLand University has the following grading policy:

• Every student receives a grade in the inclusive range from 0 to 100.
• Any grade less than 40 is a failing grade.

Sam is a professor at the university and likes to round each student’s grade according to these rules:

If the difference between the grade and the next multiple 5 of is less than 3, round grade up to the next multiple of 5.
If the value of grade is less than 38, no rounding occurs as the result will still be a failing grade.

Examples

• grade = 84 round to 85(85–84 is less than 3)
• grade = 29 do not round (result is less than 40)
• grade = 57 do not round (60–57 is 3 or higher)
  Given the initial value of grade for each of Sam’s n students, write code to automate the rounding process.

Function Description

Complete the function gradingStudents in the editor below.

gradingStudents has the following parameter(s):

• int grades[n]: the grades before rounding

Returns

• int[n]: the grades after rounding as appropriate

Input Format

The first line contains a single integer, n, the number of students.
Each line i of the n subsequent lines contains a single integer, grades[i].

Constraints

• 1 ≤ n ≤ 60
• 0 ≤ grades[i] ≤100

Solution

In this algorithm, we return the map of the grades array. If a grade satisfies the condition of the grade being greater or equal to 38 and the remainder of the grade divided by 5 is greater than or equal to 3, we round the grade up to the multiple of 5. Otherwise, we return grade.