In this video we will see how to find the first element that occurs k number of times in a given array of n integers. If no such element found then print -1.
Examples:
Input: {1, 7, 4, 3, 4, 8, 7},
k = 2
Output: 7
Both 7 and 4 occur 2 times.
But 7 is the first element that occurs 2 times.
Check out the video to see how we implement this!!
Practice Problem: https://practice.geeksforgeeks.org/problems/first-element-to-occur-k-times5150/1
Article: https://www.geeksforgeeks.org/first-element-occurring-k-times-array/
SDE Sheet: https://www.geeksforgeeks.org/sde-sheet-a-complete-guide-for-sde-preparation/