please help getting this running

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#include #include void main() { char_grade; int no, i; float marks [10], per=0, total=0; clrscr(); printf ("Enter number of subject: "); scanf("%d", &no); printf("Enter marks of $d subject: ", no); for (i=0; i85) { grade='A'; } else if (per=75) { grade='B'; } else if (per=50) { grade='C'; } else if (per=30) { grade='D'; } else { grade='F'; } printf("You got: $c Grade", grade); getch(); }