Moving All Zeros to the End of an Array While Maintaining Order

Moving all zeros in an array to the end while keeping the order of non-zero elements is a common problem in programming. The goal is to rearrange the array so that all non-zero numbers appear first in their original order, followed by all the zeros, without using extra space. A simple and efficient way to do this is to use a pointer that keeps track of the position where the next non-zero element should be placed. By iterating through the array, every time a non-zero element is found, it is moved to this position and the pointer is incremented. After all non-zero elements have been placed, the remaining positions in the array are filled with zeros. This method ensures that the relative order of non-zero elements is preserved and that the zeros are moved to the end efficiently. It works in a single pass through the array and does not require any extra memory, making it both fast and space-efficient.