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#include <stdio.h>
#include <stdlib.h>
 
int main()
{
    int t1, t2, t3, prj, r, line = 0;
    float h1, h2, h3, h4;
 
    FILE *fp = fopen("student.dat", "rt");
    fscanf(fp, "%d %d %d %e %e %e %e %d", t1, t2, t3, h1, h2, h3, h4, prj);
 
     if (fp == NULL)
    {
        printf ("Error opening the file\n\n'");
        exit(EXIT_FAILURE);
    } 
    else
        {
 
            r = fscanf(fp, "%d %d %d %e %e %e %e %d", t1, t2, t3, h1, h2, h3, h4, prj);
            while (r != EOF)
            {
                t1 = t1/100 * 20;
                 t2 = t2/100 * 20;
                 t3 = t3/100 * 20;
                float avgH = (h1 + h2 + h3)/3;
                prj = prj/100*30;
                printf(t1 + t2 + t3 + avgH + prj);
                 r = fscanf(fp, "%d %d %d %e %e %e %e %d", t1, t2, t3, h1, h2, h3, h4, prj);
 
            }
 
        }
 
    fclose(fp);
 
    }
 
    return (0);
 }
 

prog.c: In function 'main':
prog.c:10:16: warning: format '%d' expects argument of type 'int *', but argument 3 has type 'int' [-Wformat=]
     fscanf(fp, "%d %d %d %e %e %e %e %d", t1, t2, t3, h1, h2, h3, h4, prj);
                ^
prog.c:10:16: warning: format '%d' expects argument of type 'int *', but argument 4 has type 'int' [-Wformat=]
prog.c:10:16: warning: format '%d' expects argument of type 'int *', but argument 5 has type 'int' [-Wformat=]
prog.c:10:16: warning: format '%e' expects argument of type 'float *', but argument 6 has type 'double' [-Wformat=]
prog.c:10:16: warning: format '%e' expects argument of type 'float *', but argument 7 has type 'double' [-Wformat=]
prog.c:10:16: warning: format '%e' expects argument of type 'float *', but argument 8 has type 'double' [-Wformat=]
prog.c:10:16: warning: format '%e' expects argument of type 'float *', but argument 9 has type 'double' [-Wformat=]
prog.c:10:16: warning: format '%d' expects argument of type 'int *', but argument 10 has type 'int' [-Wformat=]
prog.c:20:28: warning: format '%d' expects argument of type 'int *', but argument 3 has type 'int' [-Wformat=]
             r = fscanf(fp, "%d %d %d %e %e %e %e %d", t1, t2, t3, h1, h2, h3, h4, prj);
                            ^
prog.c:20:28: warning: format '%d' expects argument of type 'int *', but argument 4 has type 'int' [-Wformat=]
prog.c:20:28: warning: format '%d' expects argument of type 'int *', but argument 5 has type 'int' [-Wformat=]
prog.c:20:28: warning: format '%e' expects argument of type 'float *', but argument 6 has type 'double' [-Wformat=]
prog.c:20:28: warning: format '%e' expects argument of type 'float *', but argument 7 has type 'double' [-Wformat=]
prog.c:20:28: warning: format '%e' expects argument of type 'float *', but argument 8 has type 'double' [-Wformat=]
prog.c:20:28: warning: format '%e' expects argument of type 'float *', but argument 9 has type 'double' [-Wformat=]
prog.c:20:28: warning: format '%d' expects argument of type 'int *', but argument 10 has type 'int' [-Wformat=]
prog.c:28:24: error: incompatible type for argument 1 of 'printf'
                 printf(t1 + t2 + t3 + avgH + prj);
                        ^
In file included from prog.c:1:0:
/usr/include/stdio.h:362:12: note: expected 'const char * restrict' but argument is of type 'long double'
 extern int printf (const char *__restrict __format, ...);
            ^
prog.c:29:33: warning: format '%d' expects argument of type 'int *', but argument 3 has type 'int' [-Wformat=]
                  r = fscanf(fp, "%d %d %d %e %e %e %e %d", t1, t2, t3, h1, h2, h3, h4, prj);
                                 ^
prog.c:29:33: warning: format '%d' expects argument of type 'int *', but argument 4 has type 'int' [-Wformat=]
prog.c:29:33: warning: format '%d' expects argument of type 'int *', but argument 5 has type 'int' [-Wformat=]
prog.c:29:33: warning: format '%e' expects argument of type 'float *', but argument 6 has type 'double' [-Wformat=]
prog.c:29:33: warning: format '%e' expects argument of type 'float *', but argument 7 has type 'double' [-Wformat=]
prog.c:29:33: warning: format '%e' expects argument of type 'float *', but argument 8 has type 'double' [-Wformat=]
prog.c:29:33: warning: format '%e' expects argument of type 'float *', but argument 9 has type 'double' [-Wformat=]
prog.c:29:33: warning: format '%d' expects argument of type 'int *', but argument 10 has type 'int' [-Wformat=]
prog.c:6:29: warning: unused variable 'line' [-Wunused-variable]
     int t1, t2, t3, prj, r, line = 0;
                             ^
prog.c: At top level:
prog.c:39:5: error: expected identifier or '(' before 'return'
     return (0);
     ^
prog.c:40:2: error: expected identifier or '(' before '}' token
  }
  ^

Standard output is empty