diff --git a/README.md b/README.md
new file mode 100644
index 0000000..874f933
--- /dev/null
+++ b/README.md
@@ -0,0 +1,4 @@
+## 线性动态规划优化为O(nlogn)方法
+>如果是递增序列就lower_bound
+
+>如果是递减序列就手写二分
\ No newline at end of file
diff --git a/src/8/26/P2782.cpp b/src/8/26/P2782.cpp
index 8252ca9..e9c3dee 100644
--- a/src/8/26/P2782.cpp
+++ b/src/8/26/P2782.cpp
@@ -41,6 +41,7 @@ int main(){
         } else {
             *it = x;
         }
+        pa(f);
     }
     std::cout << f.size() << std::endl;
     return 0;