diff --git a/ACM-Code-Library b/ACM-Code-Library
index f2764b8..7556c65 160000
--- a/ACM-Code-Library
+++ b/ACM-Code-Library
@@ -1 +1 @@
-Subproject commit f2764b84ca6e9b810cbfac99e1a45280f4cd71ce
+Subproject commit 7556c651db74de29e9c84dd19254ba7f4faa392d
diff --git a/scl.yaml b/scl.yaml
index fbc0580..2950b67 100644
--- a/scl.yaml
+++ b/scl.yaml
@@ -55,6 +55,8 @@
       fname: Segment_Tree(Dynamic_Memory).cpp
     - title: Rollback UFS
       fname: Rollback_UFS.cpp
+    - title: Persistent LiChao SegmentTree
+      fname: Persistent_LiChao_SegmentTree.cpp
 - name: Graph
   dir: Graph/
   files:
@@ -75,6 +77,8 @@
   files:
     - title: Divide \& Conquer of Point
       fname: Point-Divide&Conquer.cpp
+    - title: Divide \& Conquer of Edge
+      fname: Edge-Divide&Conquer.cpp
     - title: Heavy Light Decomposition
       fname: Heavy_Light_Decomposition.cpp
     - title: Virtual Tree
@@ -104,3 +108,5 @@
   files:
     - title: Header
       fname: Header.cpp
+    - title: FORMULA
+      fname: formula.txt