AASHISHAG / leetcode

leetcode

A data structure is a way to store and organize data.

Source: (BigO cheatsheet)[https://www.bigocheatsheet.com/]

General Questions

1. Time and Space complexity

Binary Tree

1. Count visible nodes - Microsoft
2. Tree Traversal - General
3. Trie - General

String

1. Largest alphabetic character - Microsoft
2. Pattern recognition - Microsoft
3. Reverse words in a given string - Geeks for Geeks
4. Group anagrams - General

Integers

1. Maximum sum of two elements whose digit sum is equal - Microsoft
2. Maximum positive and negative number - Microsoft

Intervals

1. Meeting Rooms - Microsoft
2. Meeting Rooms II - Microsoft
3. Merge Intervals - Facebook