Update README.md

Author: github-actions[bot]

README.md

@@ -68,5 +68,5 @@ This repository is licensed under the [MIT License](LICENSE).
 
 ## 🏆 Progress
 
-- Problems solved: 30
-- Last updated: 19 Sep 2025, 07:38 AM UTC+05:30
+- Problems solved: 31
+- Last updated: 20 Sep 2025, 09:18 AM UTC+05:30