Coders Crushby Napplied AI

Data Structures & Algorithms

100+ curated problems from top tech interviews

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3 problems found

Number of Islands

#200
MediumGraphs

Given an m x n 2D binary grid grid which represents a map of '1's (land) and '0's (water), return the number of islands. An island is surrounded by wa...

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O(m*n) / O(m*n)
Google, Amazon

Course Schedule

#207
MediumGraphs

There are a total of numCourses courses you have to take. Some courses may have prerequisites. Given the total number of courses and a list of prerequ...

O(V + E) / O(V + E)
Google, Amazon

Word Ladder

#127
HardGraphs

A transformation sequence from beginWord to endWord using dictionary wordList is a sequence where every adjacent pair of words differs by a single let...

O(M² * N) / O(M * N)
Google, Amazon