## Find Duplicate Rows in a Binary Matrix

Find duplicate rows present in a given binary matrix by traversing the matrix only once.

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Find duplicate rows present in a given binary matrix by traversing the matrix only once.

Given a huge set of strings with duplicate strings present, find first k-maximum occurring words in it.

Given a huge set of strings with duplicate strings present, find the maximum occurring word in it. If two words have same count, return any one of them.

Lexicographic sorting: Given a set of strings, print them in Lexicographic order (dictionary/alphabetical order).

Find Longest Common Prefix (LCP) in given set of strings.

In this post, we will cover memory efficient Trie implementation in C++ using map data structure.

Implement insert, search and delete operations on Trie Data structure. Assume that input consist of lowercase letters a-z.

Given an undirected graph, check if is is a tree or not. In other words, check if given undirected graph is a Acyclic Connected Graph or not.