diff --git a/lectures/C++StringClass.txt b/lectures/C++StringClass.txt
new file mode 100644
index 0000000..5e33bb5
--- /dev/null
+++ b/lectures/C++StringClass.txt
@@ -0,0 +1 @@
+https://www.programiz.com/cpp-programming/string-class
\ No newline at end of file
diff --git a/lectures/C++VectorClass.txt b/lectures/C++VectorClass.txt
new file mode 100644
index 0000000..886c9f1
--- /dev/null
+++ b/lectures/C++VectorClass.txt
@@ -0,0 +1 @@
+https://www.programiz.com/cpp-programming/vectors
\ No newline at end of file