Change graph description format

Also adds a `genrand' program for testing purposes.

1 files changed, 6 insertions, 5 deletions

diff --git a/test3.txt b/test3.txt
index 007cb00..e6ba9b6 100644
--- a/test3.txt
+++ b/test3.txt
@@ -1,5 +1,6 @@
-1 4
-1 2 4 3 3.125
-2 1 4 3 3     4 4
-3 1 3.125 2 3 4 5
-4 3 5 2 4
+a d
+a b 4
+a c 3.125
+b c 3
+b d 4
+c d 5