public StudentAndAverageGrade[] FindStudentsWithLowestAverageGrade(Student[] students)
{
StudentAndAverageGrade[] studentsLAG = new StudentAndAverageGrade[0];
var min = CalculateTheAverageGradeForOneStudent(students[0]);
var lowestGradeStudent = students[0];
var counter = -1;
for (int i = 1; i < students.Length; i++)
{
if (min > CalculateTheAverageGradeForOneStudent(students[i]))
{
min = CalculateTheAverageGradeForOneStudent(students[i]);
lowestGradeStudent = students[i];
}
}
for (int i = 0; i < students.Length; i++)
{
if (min == CalculateTheAverageGradeForOneStudent(students[i]))
{
Array.Resize(ref studentsLAG, studentsLAG.Length + 1);
counter++;
studentsLAG[counter] = new StudentAndAverageGrade(students[i].studentName, min);
}
}
return(studentsLAG);
}
public void ShouldSortStudentsbyAverageGrade()
{
Student[] students = new Student[]
{
new Student("Paul", new Material[]
{
new Material("Math", new int[] { 7, 7 }),
new Material("English", new int[] { 7, 7 }),
new Material("French", new int[] { 7, 7 })
}),
new Student("Raul", new Material[]
{
new Material("Math", new int[] { 6, 6 }),
new Material("English", new int[] { 6, 6 }),
new Material("French", new int[] { 6, 6 })
}),
new Student("Alin", new Material[]
{
new Material("Math", new int[] { 8, 8 }),
new Material("English", new int[] { 8, 8 }),
new Material("French", new int[] { 8, 8 })
}),
new Student("Zoro", new Material[]
{
new Material("Math", new int[] { 6, 6 }),
new Material("English", new int[] { 6, 6 }),
new Material("French", new int[] { 6, 6 })
})
};
var result0 = new string[] { "Alin", "Paul", "Raul", "Zoro" };
var result1 = new StudentAndAverageGrade[]
{
new StudentAndAverageGrade("Alin", 8),
new StudentAndAverageGrade("Paul", 7),
new StudentAndAverageGrade("Raul", 6),
new StudentAndAverageGrade("Zoro", 6)
};
var function0 = SortAlphabetically(students);
Assert.AreEqual(result0[0], function0[0].studentName);
Assert.AreEqual(result0[3], function0[3].studentName);
var function1 = SortStudentsbyAverageGrade(students);
CollectionAssert.AreEqual(result1, function1);
var function2 = FindStudentsWithLowestAverageGrade(students);
CollectionAssert.AreEqual(new StudentAndAverageGrade[] { new StudentAndAverageGrade("Raul", 6), new StudentAndAverageGrade("Zoro", 6) }, function2);
var function3 = FindStudentWitheSpecificAverageGrade(students, 7);
CollectionAssert.AreEqual(new StudentAndAverageGrade[] { new StudentAndAverageGrade("Paul", 7) }, function3);
}
public StudentAndAverageGrade[] FindStudentWitheSpecificAverageGrade(Student[] students, int averageGrade)
{
StudentAndAverageGrade[] findTheStudent = new StudentAndAverageGrade[0];
var counter = -1;
for (int i = 0; i < students.Length; i++)
{
if (averageGrade == CalculateTheAverageGradeForOneStudent(students[i]))
{
Array.Resize(ref findTheStudent, findTheStudent.Length + 1);
counter++;
findTheStudent[counter] = new StudentAndAverageGrade(students[i].studentName, averageGrade);
}
}
return(findTheStudent);
}
public StudentAndAverageGrade[] SortStudentsbyAverageGrade(Student[] students)
{
for (int i = 0; i < students.Length; i++)
{
for (int j = i + 1; j < students.Length; j++)
{
if (CalculateTheAverageGradeForOneStudent(students[i]) <
CalculateTheAverageGradeForOneStudent(students[j]))
{
Change(ref students[i], ref students[j]);
}
}
}
StudentAndAverageGrade[] list = new StudentAndAverageGrade[students.Length];
for (int i = 0; i < students.Length; i++)
{
var averageGrade = CalculateTheAverageGradeForOneStudent(students[i]);
list[i] = new StudentAndAverageGrade(students[i].studentName, averageGrade);
}
return(list);
}
