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 - [DailyCodingProblem](https://www.dailycodingproblem.com)
 - [UrionlineJudge](https://www.urionlinejudge.com.br/judge/en/login)
 - [Workattech DSA Interview Practice](https://workat.tech/problem-solving/practice?tags=dsa)
-
+- [Binarysearch](https://binarysearch.com/)
 
 ## Problem Solving Books: 
 - A Path to Combinatorics for Undergraduates