/in/foo.c: In function 'FindMaxs':
/in/foo.c:3:10: warning: unused variable 'j' [-Wunused-variable]
  int i=0,j=0;
          ^
/in/foo.c: In function 'main':
/in/foo.c:12:32: warning: unused variable 'j' [-Wunused-variable]
  int a[1000]={0},b[1000]={0},i,j,n1,n2;
                                ^