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 * This repository builds on topics covered in the Competitive Programming guide on the GeeksforGeeks website. Guide link https://www.geeksforgeeks.org/competitive-programming-a-complete-guide/
 
 #### The problems were taken from sites like:
-* Hackerrank, GeeksforGeeks and LeetCode.
+* Hackerrank, GeeksforGeeks, LeetCode, Spoj and CodeForces.
 * Each resolution source code has a direct link to the problem description.