Move Zeroes to End Problem Statement

Given an unsorted array of integers, modify the array such that all the zeroes are moved to the end, while maintaining the order of non-zero elements as they appear originally.

Example:

Input:
array = [0, 1, -2, 3, 4, 0, 5, -27, 9, 0]
Output:
[1, -2, 3, 4, 5, -27, 9, 0, 0, 0]
Explanation:

The non-zero elements [1, -2, 3, 4, 5, -27, 9] are moved to the front maintaining their relative order, followed by zeroes shifted to the end.

Constraints:

  • 1 <= T <= 50 - Number of test cases.
  • 1 <= N <= 10^6 - Size of the array.
  • -10000 <= A[i] <= 10000 - Value of each element in the array.
Input:
The first line contains an integer ‘T’, the number of test cases.

For each test case:
The first line contains an integer ‘N’, the size of the array.
The second line contains ‘N’ integers, the elements of the array.
Output:
Print the modified array for each test case on a new line.
Note:
You are not required to print anything; focus on implementing the function to achieve the required transformation.
AnswerBot
4mo

Move all zeroes to the end of an unsorted array while maintaining the order of non-zero elements.

  • Iterate through the array and maintain two pointers - one for non-zero elements and one for zeroes.

  • Swap...read more

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