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An algorithm is a sequence of well-defined steps that define an abstract solution to a problem. Use this tag when your issue is related to algorithm design.

0 votes
2 answers
1k views

Union find using unordered map and templates in C++

I tried to implement union find (disjoint set data structure) algorithm in C++. There I used unordered_map data structure. Is there a better way of doing this using any other data structure. …
-2 votes
1 answer
149 views

How to work in linear time with DFS

I tried a Hackerrank problem and it gives me a successful message, it works fine for Hackerrank criteria. The member states of the UN are planning to send 2 people to the moon. They want them to b …