📃 docs: add notes

李钊 · 李钊 · commit 404863206c67 · 2023-03-16T11:33:30.000+08:00
diff --git a/README.md b/README.md
@@ -12,3 +12,14 @@
 ## Prefix Sum
 
 
+
+
+# C++ Weapons
+
+
+## upper_bound
+
+return the first element that is less than the provided value.
+
+
+## sort
