ขอบคุณมากๆๆๆ แต่ผมดูไม่เข้าใจ1----------------------------------------------------------------------------------
2-----------------5----7->8---7-----5----7------3->5------3~5~3----2--
3--------------7------------------------------------------------------------------
4-----------7---------------------------------------------------------------------
5----------------------------------------------------------------------------------
6----------------------------------------------------------------------------------



1----------------------------------------------------------------------------------
2----2->3-----2-----0---------------------3------------------------------------
3----------------------------2------4---------------------------------------------
4-----------------------------------------------------------------------------------
5-----------------------------------------------------------------------------------
6-----------------------------------------------------------------------------------