diff --git a/lib/OptimalBranching_MIS b/lib/OptimalBranching_MIS
new file mode 160000
index 0000000..9a0b47f
--- /dev/null
+++ b/lib/OptimalBranching_MIS
@@ -0,0 +1 @@
+Subproject commit 9a0b47f8b25a8ec2d8743e6e6e794c8fb5c03909