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@ -14,7 +14,7 @@ namespace GPA_Calculator
{ {
RenderGrades(); RenderGrades();
inputGrade = Console.ReadLine(); inputGrade = Console.ReadLine();
inputGrade = inputGrade.Replace("+", "Plus").Replace("-", "Minus"); inputGrade = inputGrade.ToUpper().Replace("+", "Plus").Replace("-", "Minus");
if(Enum.TryParse<Grade>(inputGrade, out Grade grade)) if(Enum.TryParse<Grade>(inputGrade, out Grade grade))
{ {
GradesList.Add(grade); GradesList.Add(grade);
@ -23,6 +23,10 @@ namespace GPA_Calculator
{ {
GradesList = new List<Grade>(); GradesList = new List<Grade>();
} }
else if (inputGrade == "undo" && GradesList.Count > 0)
{
GradesList.RemoveAt(GradesList.Count - 1);
}
} }
} }