Average Grade Checker in C with Remarks

 #include <stdio.h>

int main() {

    int grade;

    int sum = 0;

    int count = 0;

    printf("\n\n\tAverage Grade Checker in C with Remarks\n\n");

    printf("\n\tEnter grades (enter -1 to finish):\n");

    while (1) {

        printf("\n\tEnter grade: ");

        scanf("%d", &grade);

        if (grade == -1) {

            break;

        }

        sum += grade;

        count++;

    }

    if (count == 0) {

        printf("\nNo grades entered. Exiting...\n");

        return 0;

    }

    double average = (double)sum / count;

    printf("\n\tAverage grade: %.0f\n", average);

    printf("\n");

    // Determine the corresponding grade category

    if (average == 100) {

        printf("\n\tExcellent\n");

    } else if (average >= 95 && average <= 99) {

        printf("\n\tVery Satisfactory\n");

    } else if (average >= 90 && average <= 94) {

        printf("\n\tSatisfactory\n");

    } else if (average >= 85 && average <= 89) {

        printf("\n\tOutstanding\n");

    } else if (average >= 80 && average <= 84) {

        printf("\n\tGood\n");

    } else if (average >= 75 && average <= 79) {

        printf("\n\tPass\n");

    } else {

        printf("\n\tFail\n");

    }

    printf("\n\n");

    printf("\tEnd of Program\n\n");

    return 0;

}