diff --git a/README.md b/README.md
index 0e7d32d..2708402 100644
--- a/README.md
+++ b/README.md
@@ -3,3 +3,7 @@
 https://www.hackerearth.com/practice/notes/standard-template-library/
 
 https://github.com/gibsjose/cpp-cheat-sheet/blob/master/Data%20Structures%20and%20Algorithms.md
+
+https://www.topcoder.com/community/competitive-programming/tutorials/power-up-c-with-the-standard-template-library-part-1/
+
+https://www.topcoder.com/community/competitive-programming/tutorials/power-up-c-with-the-standard-template-library-part-2/