/in/foo.cc: In function 'int MoveLeft(int*, int, int)':
/in/foo.cc:10:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:20:6: warning: statement has no effect [-Wunused-value]
 for(k;k>0;k--)
      ^