#include <stdio.h>
#include <string.h>

int main()
{
    int i, j, nc;

    struct school
    {
        char name[30][10], res[6][10], gr[3][10];
        int rno[10], n;
        float t[10], h[10], e[10], m[10], s[10], ss[10], tot[10], avg[10];
    } o[10];

    printf("Enter number of classes: ");
    scanf("%d", &nc);

    getchar(); // Remove newline

    for (i = 0; i < nc; i++)
    {
        printf("Enter Number of students in class %d: ", i + 1);
        scanf("%d", &o[i].n);
        getchar();

        for (j = 0; j < o[i].n; j++)
        {
            printf("\nEnter %d student Name: ", j + 1);
            // fgets(o[i].name[j], 10, stdin);
			scanf("%[^\n]s", o[i].name[j]);
            o[i].name[j][strcspn(o[i].name[j], "\n")] = '\0';

            printf("Enter Roll Number: ");
            scanf("%d", &o[i].rno[j]);

            printf("Enter marks (Telugu Hindi English Maths Science Social): ");
            scanf("%f %f %f %f %f %f",
                  &o[i].t[j],
                  &o[i].h[j],
                  &o[i].e[j],
                  &o[i].m[j],
                  &o[i].s[j],
                  &o[i].ss[j]);

            getchar();

            o[i].tot[j] = o[i].t[j] + o[i].h[j] + o[i].e[j] +
                          o[i].m[j] + o[i].s[j] + o[i].ss[j];

            o[i].avg[j] = o[i].tot[j] / 6;

            if (o[i].t[j] < 35 || o[i].h[j] < 35 || o[i].e[j] < 35 ||
                o[i].m[j] < 35 || o[i].s[j] < 35 || o[i].ss[j] < 35)
            {
                strcpy(o[i].res[j], "Fail");
                strcpy(o[i].gr[j], "F");
            }
            else
            {
                strcpy(o[i].res[j], "Pass");

                if (o[i].avg[j] >= 90)
                    strcpy(o[i].gr[j], "A");
                else if (o[i].avg[j] >= 60)
                    strcpy(o[i].gr[j], "B");
                else
                    strcpy(o[i].gr[j], "C");
            }
        }
    }

    printf("\n\n                          Results\n");
    printf("-----------------------------------------------------------\n");
    printf("Reg No   Name       Total     Avg     Result     Grade\n");
    printf("-----------------------------------------------------------\n");

    for (i = 0; i < nc; i++)
    {
        printf("\nClass %d\n", i + 1);

        for (j = 0; j < o[i].n; j++)
        {
            printf("%-8d %-10s %-8.2f %-8.2f %-10s %-5s\n",
                   o[i].rno[j],
                   o[i].name[j],
                   o[i].tot[j],
                   o[i].avg[j],
                   o[i].res[j],
                   o[i].gr[j]);
        }
    }

    printf("-----------------------------------------------------------\n");

    return 0;
}