/in/foo.cc: In function 'int main()':
/in/foo.cc:20:33: warning: operation on 'count' may be undefined [-Wsequence-point]
   Insert(a,2*count+1,count,count++);
                            ~~~~~^~
/in/foo.cc:20:33: warning: operation on 'count' may be undefined [-Wsequence-point]
/in/foo.cc:21:33: warning: operation on 'count' may be undefined [-Wsequence-point]
   Insert(a,2*count+1,count,count++);
                            ~~~~~^~
/in/foo.cc:21:33: warning: operation on 'count' may be undefined [-Wsequence-point]
/in/foo.cc:15:6: warning: unused variable 'i' [-Wunused-variable]
  int i;
      ^