/in/foo.c: In function 'main':
/in/foo.c:5:13: warning: unused variable 'j' [-Wunused-variable]
     int x,i,j,count=0;
             ^
/in/foo.c:5:11: warning: unused variable 'i' [-Wunused-variable]
     int x,i,j,count=0;
           ^