implement Graph representation as linked list
tree63efb4f8589a3fa5a245bce1a01292986f3a6769
-rw-r--r-- 58 .gitignore
-rw-r--r-- 985 Element.java
-rw-r--r-- 1137 Environment.java
-rw-r--r-- 176 Global.java
-rw-r--r-- 1414 GraphTest.java
-rw-r--r-- 607 View.java
drwxr-xr-x - si