commit 2622e527e2c7c996afd7866995b01a28ffadb06e
Author:  <Chen>
Date:   Mon May 2 08:13:12 2011 +0800

    add in.txt and modify the source code to make the command by the teacher.

diff --git a/in.txt b/in.txt
new file mode 100644
index 0000000..e92a670
--- /dev/null
+++ b/in.txt
@@ -0,0 +1,12 @@
+6
+10
+1 2 6
+1 4 3
+1 5 2
+2 3 2
+2 5 2
+2 6 1
+3 6 3
+4 5 1
+5 2 3
+5 6 5