Thread: im a newbie at c please help.

This doesn't make sense and should have resulted in a compile error, or at least a warning:

Code:

int grade[10][0];

It looks like you want to read in the grades of ten students, one grade per student, so you should have written:

Code:

int grade[10] = {0};

The zero initialisation means that you don't have to manually set the initial value of all the elements to zero.

This is non-standard and you should remove it since you don't need it here:

Code:

fflush(stdin);

Next, for the scanf, while you could have a format string consisting of ten format specifiers, you may find it easier to use a loop that reads one grade per iteration. Note that the elements of the grade array start from grade[0] and ends at grade[9], not grade[10].

Oh, and remember to indent your code so as to make it more readable.

Every grade in your scanf line needs to be &grade[n]

A better compiler will tell you such things.

Code:

$ gcc -Wall foo.c
foo.c: In function ‘main’:
foo.c:7:9: warning: format ‘%d’ expects argument of type ‘int *’, but argument 2 has type ‘int’ [-Wformat=]
   scanf("%d %d %d %d %d %d %d %d %d %d \n", grade[1], grade[2], grade[3],grade[4], grade[5], grade[6], grade[7], grade[8], grade[9], grade[0]);
         ^
foo.c:7:9: warning: format ‘%d’ expects argument of type ‘int *’, but argument 3 has type ‘int’ [-Wformat=]
foo.c:7:9: warning: format ‘%d’ expects argument of type ‘int *’, but argument 4 has type ‘int’ [-Wformat=]
foo.c:7:9: warning: format ‘%d’ expects argument of type ‘int *’, but argument 5 has type ‘int’ [-Wformat=]
foo.c:7:9: warning: format ‘%d’ expects argument of type ‘int *’, but argument 6 has type ‘int’ [-Wformat=]
foo.c:7:9: warning: format ‘%d’ expects argument of type ‘int *’, but argument 7 has type ‘int’ [-Wformat=]
foo.c:7:9: warning: format ‘%d’ expects argument of type ‘int *’, but argument 8 has type ‘int’ [-Wformat=]
foo.c:7:9: warning: format ‘%d’ expects argument of type ‘int *’, but argument 9 has type ‘int’ [-Wformat=]
foo.c:7:9: warning: format ‘%d’ expects argument of type ‘int *’, but argument 10 has type ‘int’ [-Wformat=]
foo.c:7:9: warning: format ‘%d’ expects argument of type ‘int *’, but argument 11 has type ‘int’ [-Wformat=]