จัดห้องพี่เต้ย

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int c[100]= {0},d[100]= {0},i,j,a,b,max=0;
    char s=' ',x[4],y[4];
    for (i=0;i<1;i++)
    {scanf ("%s %s",&x,&y);}

    //{printf("%s%s",x,y);}
    printf("PLz input number of student.");
    scanf("%d %d",&a,&b);
    if (a>=b)
    {max=a;}
    else
    {
        max=b;
    }
    printf("Test room for %s and %s\n",x,y);
    for (i=1; i<=a; i++)
    {
        c[i]=i;
    }
    for (i=1; i<=b; i++)
    {
        d[i]=i;
    }




    //printf("%d",c[5]);

    printf ("\t\troom 1\n");
    printf("\t\tfrom number 01 to 25\n");
    for (i=1; i<=25; i++)
    {
        if (d[i]==0&&c[i]==0)
        {
            printf("%3c- %2c-",s,s);
        }
        else
        if (c[i]==0)
        {
            printf("%3c-  %2d",s,d[i]);
        }

        else if (d[i]==0)
        {
            printf("%5d %c-",c[i],s);
        }
        else
        {
            printf("%5d %2d",c[i],d[i]);
        }
        if (i%5==0)
        {
            printf("\n");
        }
    }
    if (c[i]<26&&d[i]<26)
    return 0;
    printf("\t\troom 2\n");

    printf("\t\tfrom number 26 to %d\n",max);
    for (i=26; i<=50; i++)
    {
        if (d[i]==0&&c[i]==0)
        {
            printf("%3c- %2c-",s,s);
        }
        else if (c[i]==0)
        {
            printf("%3c-  %2d",s,d[i]);
        }
        else if (d[i]==0)

        {
            printf("%5d %c-",c[i],s);
        }
        else
        {
            printf("%5d %2d",c[i],d[i]);
        }
        if (i%5==0)
        {
            printf("\n");
        }
    }
    scanf(" ");
    return 0;
}