Be the first user to complete this post
|
Add to List |
Find an Element in 2 dimensional sorted array
Objective: Write an algorithm to find an element in 2-dimensional array where rows and columns are sorted respectively.
Input: A two dimensional sorted array, arrA[][].
Output: True or false based on whether the element exists and its location
Approach:
- Start from the right top corner, say ele is the matrix element;
- If ele>number -> move left
- If ele<number -> move down
- If you cant move further to find the number , return false
Code:
The Movement : 4->9->16->15->The 15 present in 2D array a ??? :true The Movement : 4->9->8->7->6->The 5 present in 2D array a ??? :false The Movement : 4->9->16->20->19->The 19 present in 2D array a ??? :true The Movement : 4->9->16->20->The 25 present in 2D array a ??? :false
Also Read: