C++ Program to Count Frequency of Each Element in an Array
source link: https://www.geeksforgeeks.org/videos/c-program-to-count-frequency-of-each-element-in-an-array/
Go to the source link to view the article. You can view the picture content, updated content and better typesetting reading experience. If the link is broken, please click the button below to view the snapshot at that time.
C++ Program to Count Frequency of Each Element in an Array
- 10 Views
- 09/06/2022
In this video we will see C++ Program to Count Frequency of each element in an Array.
Examples: Input : arr[] = {10, 20, 20, 10, 10, 20, 5, 20} Output : 10 3 20 4 5 1
Input : arr[] = {10, 20, 20} Output : 10 1 20 2
To Count the Frequency of each element in an Array:
1) Brute approach [using for loop] 2) Better approach [using unordered map] 3) Optimal approach [with a constraint]
Here we see time and space complexity of all mentioned approaches: 1) Brute approach [Time and Space complexity : N2 and N] 2) Better approach [Time and Space complexity : N and N] 3) Optimal approach [Time and Space complexity : N log N and constant(1)]
Program to Count Frequency of each element in an Array: https://www.geeksforgeeks.org/counting-frequencies-of-array-elements/
Recommend
About Joyk
Aggregate valuable and interesting links.
Joyk means Joy of geeK