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website link:
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Topics covered in this video series are:
1.Arrays
   • 1.1 ARRAYS | Must Do Coding Questions  
2.String
   • 1.2 STRING | Must Do Coding Questions  
3.Linked List
   • 1.3 LINKED LIST | Must Do Coding Questions  
4.Stack and Queue
5.Tree and BST
6.Heap
7.Recursion
8.Hashing
9.Graph
10.Greedy
11.Dynamic Programming
12.Divide and Conquer
13.Backtracking
14.Bit Magic

String:
13. Longest common prefix in an array:
Given an array of N strings, find the longest common prefix among all strings present in the array.

Example 1:
N = 4
arr[] = {geeksforgeeks, geeks, geek, geezer}
Output: gee
Explanation: "gee" is the longest common
prefix in all the given strings.

Example 2:
Input:
N = 2
arr[] = {hello, world}
Output: -1
Explanation: There's no common prefix
in the given strings.

Code Link:
https://github.com/krishna-gavas/Comp...

Intro Music :
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