An Efficient and Effective Detailed Placement Algorithm Global Swap  To identify a pair of cells that can be swapped to reduce wirelength (others are fixed). 2. Vertical Swap  Swap a cell with a nearby cell in the segment

开源libtrie库。高效，快速，十分常用的数据结构实现。 网址：http://wikipedia-clustering.speedblue.org/trie.php-Open Source libtrie library. Efficient, rapid and very common data structure. Website: http://wikipedia-clustering.speedblue.org/trie.php

Energy Efficient Multilevel Clustering Protocol For Wireless Sensor Networks With Improved Stability