#include <stdio.h>

char GradeFromPercentage(float Ngrade, int assnum, int i);
char GradeFromRawMarks(float marksAwarded, float marksAvailable, float Ngrade, int assnum, int i);
char GradeFromTotalRawMarks(float marksAwarded[], float marksAvailable[], int maxAssignments);
//Start of main
int main(int argc, const char * argv[]) {
    // Variables
    float Ngrade = 0.0, marksAwarded = 0.0, marksAvailable = 0.0; //NumberGrade
    int assnum = 0, i = 0, maxAssignments = 100; // Assignment number and counter


    printf("\n\n");
    printf("Welcome to the online grade centre program!\n");
    printf("\n\n");
    printf("How many assignments are you entering a percentage for: ");
    scanf("%d", &assnum);
    for (i=0; i < assnum; i++)
    {
        printf("Enter your grade percentage: ");
        scanf("%f", &Ngrade);
        GradeFromPercentage(Ngrade, assnum, i); // Doesn't need identfiers such as float and int.
    }

    GradeFromRawMarks(marksAwarded, marksAvailable, Ngrade, assnum, i);
    GradeFromTotalRawMarks(marksAwarded[], marksAvailable[], maxAssignments);
    // GradeFromPercentage();
    return 0;

}
//End of main

//Grade From Percentage Function
char GradeFromPercentage(float Ngrade, int assnum, int i) {

    char grade = '0';

        if (Ngrade>= 90) {
            grade = 'A';
            printf("Your grade is: %c", grade);
        } else if (Ngrade>= 70) {
            grade = 'B';
            printf("Your grade is: %c", grade);
        } else if (Ngrade>= 50) {
            grade = 'C';
            printf("Your grade is: %c", grade);
        }else if (Ngrade>= 30) {
            grade = 'D';
            printf("Your grade is: %c", grade);
        }else if (Ngrade< 30) {
            grade = 'E';
            printf("Your grade is: %c", grade);
        }else{
            printf("Invalid score, restart program.");
        }
        printf("\n");
   // }

    return grade; // Returns grade which is a char/string
    //return ;
}

//Start of GradeFromRawMarks
char GradeFromRawMarks(float marksAwarded, float marksAvailable, float Ngrade, int assnum, int i) {

    float percentage;

    marksAvailable = 100;
    printf("Enter marks: ");
    scanf("%f", &marksAwarded);
    percentage = (marksAwarded/marksAvailable)*100;
    printf("You have %.2f/%.2f\n", marksAwarded, marksAvailable);
    Ngrade = percentage;


    GradeFromPercentage(Ngrade, assnum, i);
    return 'a';
}
//End of GradeFromRawMarks

char GradeFromTotalRawMarks(float marksAwarded[], float marksAvailable[], int maxAssignments) {

    return grade;
}

int CaseCheck(char a, char b) {
    a = 'a';
    b = a - 32;
}