Delete Middle Element from Stack
You are provided with a stack ARR
of size 'N+1'. Your task is to delete the middlemost element so that the size of the resulting stack becomes 'N'.
Recall that a stack is a linear data structure where both insertion and deletion of elements occur at the top, following the LIFO (Last In First Out) or FILO (First In Last Out) principles.
Input:
The first line of input consists of an integer 'T', the number of test cases.
Each test case begins with an integer 'N', indicating that the stack initially contains 'N+1' elements.
The following line in each test case includes 'N+1' space-separated integers representing stack elements.
Output:
For each test case, output 'N' space-separated integers showing the stack after the middle element is removed.
Each test case's result should be printed on a new line.
Example:
Input: ARR = [1, 2, 3, 4, 5], N = 4
Output: ARR = [1, 2, 4, 5]
Input: ARR = [5, 6, 7, 8], N = 3
Output: ARR = [5, 7, 8]
Constraints:
- 1 <= T <= 100
- 1 <= N+1 <= 3000
- 0 <= data <= 10^9
Note:
No need to print anything; focus on implementing the function correctly.
AnswerBot
5d
Implement a function to delete the middle element from a stack, reducing its size by 1.
Iterate through the stack to find the middle element based on the stack size.
Remove the middle element and shift ...read more
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