First unique number | Leetcode
This video explains a very important programming interview question which is to find first unique element in an array. There are 2 APIs to be implemented. The ADD API enables user to add any element to end of array and Show_First_Unique API returns the first unique element from left hand side. I have shown the intuition for solving this problem and have solved this using MAP and QUEUE and have shown proper example and dry run. At the end of the video, you will find the CODE explanation for this technique. CODE LINK is given below. If you find any difficulty or have any query then do COMMENT below. PLEASE help our channel by SUBSCRIBING and LIKE our video if you found it helpful...CYA :)
CODE LINK: https://gist.github.com/SuryaPratapK/...
SIMILAR PROBLEM:
First non repeating character in a stream: • First non repeating character in a st...
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