zoj2016-w-1.cpp

有向欧拉通路问题，把单词首尾字母当做点，单词是他们之间的关系

　　1.此图连通

　　2.有且仅有两个点出度和入度不同，但差是1；其余点的出度和入度相等-Zoj2016-w-1. The CPP

Have access to euler, put the word as a point between the letters, the word is the relationship between them

1. This figure connected

2. And only two points degrees and into the different degrees, but the difference is 1　The rest of the points out degree and into the degrees equal