Two_SAT 小结

①直接求解，字典序输出答案

HDU 1814 Peaceful Commission http://blog.csdn.net/a634771197/article/details/38585663

②二分枚举答案，判有无解

HDU 1815 Building roads http://blog.csdn.net/a634771197/article/details/38585903

HDU 1816 Get Luffy Out * http://blog.csdn.net/a634771197/article/details/38586361