some programs!

luogu_P1160_biodir_linked_list.cpp

@@ -4,7 +4,7 @@
 
 using namespace std;
 
-class LinkedList {
+class CycledLinkedList {
 public:
     struct Node {
         int previous = -1, next = -1;
@@ -48,7 +48,7 @@ public:
     }
 };
 
-LinkedList l;
+CycledLinkedList l;
 
 int main() {
     ios::sync_with_stdio(false);