/in/foo.c: In function 'main':
/in/foo.c:8:8: warning: unused variable 'c' [-Wunused-variable]
  int b,c,i,j,n,m,q,sum1,sum2;
        ^
/in/foo.c:8:6: warning: unused variable 'b' [-Wunused-variable]
  int b,c,i,j,n,m,q,sum1,sum2;
      ^
/in/foo.c:7:6: warning: unused variable 'k' [-Wunused-variable]
  int k[15];
      ^